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How FDA Dye Phase-Outs Will Impact Canadian Food Manufacturers

Thu, 29 Jan 2026 14:51:03 GMT

Canadian food manufacturers aren't regulated by the U.S. FDA, but if you export to the U.S. or work with major retailers, FDA decisions still affect you.

The FDA is has announced a plan to phase out petroleum-based synthetic food dyes from the U.S food supply by the end of 2026. This is driving manufacturers across North America to reformulate their products to remain compliant. As these synthetic dyes are removed, many products become more sensitive to oxygen, leading to faster changes in appearance and decreasing the shelf life.

That's where better packaging comes in. Many Canadian manufacturers are turning to nitrogen-based packaging to protect product quality without adding more ingredients.

A nitrogen generation system pulls in air from the environment, filters out the oxygen, and produces nitrogen, which is then stored for use. The system comprises several key components, including the air compressor, filters, dryer, nitrogen generator, and storage tanks. If any of these components aren't maintained properly, the entire system can suffer.

Why FDA Decisions Affect Canadian Manufacturers

The U.S. FDA has recently revoked approval for certain petroleum-based food dyes and is phasing out others through 2026. Natural food colours remain permitted. As manufacturers reformulate products, packaging methods such as modified atmosphere packaging (MAP), including nitrogen flushing, are expected to be used more widely to extend shelf life and maintain product quality.

The Real Pressure Is From Customers

Even though FDA timelines run through 2026, many manufacturers aren’t waiting. Reformulation started early in products like snacks, cereals, beverages, and candy. More recently, frozen and dairy products are also transitioning as natural colours replace synthetic dyes across an expanding range of foods.

For Canadian manufacturers, these early changes often become customer expectations, no matter what Canadian regulations allow. In many cases, market pressure often moves faster than regulation. U.S. policy changes quickly influence:

U.S. export rules and buyer specifications

Brand standards applied across all manufacturing facilities

Retailer clean-label expectations

The result? Many Canadian manufacturers are reformulating not because the law requires it, but because their customers do.

Canada's Regulatory Position vs. Market Reality

In Canada, food colours are regulated by Health Canada. Approved synthetic colours are considered safe when used properly. However, Canadian labels must list these colours by their common name, rather than a generic "colour" declaration, making artificial dyes more visible to consumers.

Because of this, many manufacturers are updating their recipes sooner than required.

Natural Colours Create New Challenges

Switching to natural colours supports clean-label goals, but it also comes with new challenges. Colours made from fruits, vegetables, and spices are more sensitive to oxygen, light, and temperature.

Without good oxygen control, manufacturers may see faster changes in:

Colour and appearance
Flavor
Fat freshness (rancidity)
Shelf life

Smarter Packaging Can Help

Instead of adding stabilizers to fix these problems, many manufacturers are using nitrogen flush packaging that controls the environment around the food.

What nitrogen does:

Nitrogen is a harmless, odorless gas used to push oxygen out of sealed packages. It doesn't change the food itself.

Lower oxygen levels help:

Slow spoilage reactions
Keep colours and flavors stable
Reduce rancidity in fats and oils
Extend shelf life without adding ingredients

Where Nitrogen Packaging Works

Nitrogen flushing is often associated with dry snack foods. However, reduced oxygen exposure can also support many other product types, such as:

Baked goods and ready-to-eat foods
Meat and dairy products
Foods with oils or fats
Temperature-controlled products sensitive to oxidation

Nitrogen Is Approved in Canada

Nitrogen-based packaging meets Canadian food regulations and international safety standards. Additionally, because it changes the air around food—not the food itself—it supports clean-label goals.

If Nitrogen Demand Grows, Supply Matters

As nitrogen use expands across more product lines, relying on bulk gas delivery can introduce:

Price swings
Delivery delays during busy periods
Supply risks that affect production

Why On-Site Nitrogen Generation Matters

Making nitrogen on-site gives you more control. It allows you to:

Produce it when you need it
Adjust purity and flow for your needs
Scale up during peak production
Lower long-term costs

Bottom Line

As artificial dyes disappear and clean-label demands grow, manufacturers need new ways to protect shelf life and appearance. Nitrogen-based packaging offers a practical solution that meets regulations and keeps ingredient lists simple.

Why Canadian Food Manufacturers

Partner With Specialty Gas

Planning for increased nitrogen use as you reformulate?

Specialty Gas provides complete nitrogen generation systems for food manufacturers. We handle everything: design, installation, and maintenance, so you can produce your own nitrogen on-site instead of relying on expensive gas supplier contracts.

Our team specializes in Modified Atmosphere Packaging (MAP), helping you maintain product quality and keep production running smoothly.

Essential Components of a Nitrogen Generation System

Tue, 01 Oct 2024 21:13:31 GMT

Let me walk you through the key components of a nitrogen generation system, and their roles in ensuring everything runs smoothly.

As someone who's spent years working with nitrogen generation systems, I’ve seen firsthand how important these systems are for many industries, as they provide a reliable and efficient source of nitrogen.

How Does a Nitrogen Generation System Work?

1. The Air Compressor: The Heart of the System

The air compressor is central to the nitrogen generation process. In systems I’ve worked with, a 30-horsepower compressor is often used to maintain pressure between 115 and 125 PSI. This consistent pressure is essential for efficient nitrogen production. It’s important to regularly check the compressor for any warning lights that could signal an issue. Ignoring these can lead to performance problems.

2. Filtration: Ensuring Clean Air for Nitrogen Production

Filtration is crucial because it removes contaminants from the compressed air before it reaches the nitrogen generator. Filters must be maintained to prevent clogs that could impact nitrogen purity. The filters in the systems I’ve encountered often include an automatic drain to handle contaminants, but it’s essential to keep an eye on the system for any potential leaks or blockages.

3. The Air Dryer: Removing Moisture to Maintain Nitrogen Quality

The air dryer removes moisture from the compressed air, which helps prevent corrosion and other damage to the system. It’s important to regularly empty the oil-water separator to prevent water build-up. In some environments, this might need to be done more frequently.

4. Compressed Air Tanks: Storing Air Before Nitrogen Production

The compressed air tank stores clean, dry air at around 115 PSI, ready for nitrogen production. It’s important to regularly check for any water accumulation in the tank, as this can indicate an issue with the air dryer or filtration system. Maintenance is key to avoiding any disruptions in nitrogen production.

5. Nitrogen Generator: Producing High-Purity Nitrogen

The nitrogen generator separates nitrogen from oxygen, producing high-purity nitrogen with a purity level of 99.99%. To ensure the generator functions correctly, regular maintenance according to the manufacturer’s guidelines is essential. Skipping these steps can lead to reduced nitrogen purity, which can cause issues in industrial applications.

Once produced, nitrogen is stored in a low-pressure tank before being boosted into a high-pressure tank for storage. The pressure levels in these tanks are typically around 350 PSI. It’s important to monitor these levels regularly to ensure the system operates smoothly.

Maintenance and Troubleshooting for Long-Term Efficiency

Proper maintenance is key to ensuring a nitrogen generation system’s longevity. Following the manufacturer’s service guidelines, monitoring pressure levels, and addressing any warning signs promptly will keep the system running efficiently for years.

Daily checks: Regularly empty the oil-water separator.
Pressure checks: Ensure air and nitrogen pressures are within their designated ranges.
Monitor for warnings: Address any yellow or red lights immediately.

Conclusion: A Reliable Solution for Nitrogen Production

A nitrogen generation system is a significant investment, but with proper care and maintenance, it can provide reliable service for many years. By understanding the components and their functions, and by keeping up with regular maintenance, you can ensure your system operates efficiently and effectively.

For more information about these systems, check out our nitrogen generator page.

Boost Electronics Manufacturing Quality: Does In-House Nitrogen Generation Hold the Key?

Thu, 08 Feb 2024 20:17:53 GMT

Nitrogen, valued for its exceptional purity levels of up to 99.9995%, plays a pivotal role in Electronics Manufacturing. Its versatile applications in the Electronics industry span crucial processes such as Wave Soldering, Selective Soldering, Reflow Soldering, Blanketing, and Dry Box Storage, among others. Among these, Soldering stands out as the most prevalent application in the Electronics sector, consistently requiring top-notch Nitrogen quality with an oxygen content as low as 10 ppm. Soldering, a fundamental process in Electronics Manufacturing, involves joining two distinct metal types using an alloy known as solder. Historically, solder was primarily composed of Tin (63%) and Lead (37%). However, with the industry's shift towards environmental sustainability, there has been significant adoption of Lead-Free soldering approaches as Electronics Manufacturing continues to evolve. This shift underscores the critical importance of maintaining stringent standards for Nitrogen quality in modern electronics production.

The transition to the Lead-Free approach necessitates the use of solder alloys containing costly metals such as silver, and copper blended with tin to ensure the production of high-quality PCB assemblies. In today's electronics industry landscape, SAC305 and SN100C solders have emerged as the most prevalent choices. However, given the associated costs, the industry demands impeccable quality, making the presence of dross unacceptable in this competitive environment. Oxidation represents a significant factor contributing to elevated dross levels, emphasizing the need for an inert atmosphere to counter this issue. Nitrogen, with its inert properties, presents an ideal environment for soldering, acting as a crucial element in mitigating oxidation-related challenges and ensuring the flawless production of electronic components.

Nitrogen Gas Generation and Soldering

The diverse soldering techniques—Wave Soldering, Selective Soldering, and Reflow Soldering—impose varying Nitrogen requirements, each tailored to their specific processes. Take, for instance, Wave Soldering, which employs an 18” nozzle and demands nearly ten times more Nitrogen than its Selective Soldering counterpart. Recognized Selective soldering machines like Kurtz ERSA exhibit a minimalistic requirement, utilizing only 1.5 m3/hr of Nitrogen gas at a purity of 99.999% per pot. Notably, the nitrogen requirement typically follows a linear progression with an increase in pots; a two-pot soldering machine, for example, necessitates a consistent flow of 3 m3/hr of Nitrogen. It's worth highlighting the importance of consulting with the manufacturer to ascertain specific nitrogen requirements, encompassing factors like flow, pressure, and purity, to ensure optimal performance and efficiency.

Advantages of In-House Nitrogen Generation

While Nitrogen proves indispensable in Electronics manufacturing, it comes at a significant cost, with delivered Nitrogen tailored for the industry averaging around 80 cents per m3. Despite the prevalence of this essential gas, many electronics manufacturers continue to adhere to traditional methods for meeting their Nitrogen requirements—relying on cylinders, dewars, tanker deliveries, among others. However, a notable shift is underway, with a growing number of manufacturers opting for an in-house Nitrogen Generation approach. This strategic move holds several advantages, as Nitrogen Generators offer users a range of benefits, including:

Low Cost

Opting for in-house Nitrogen Generation like the Peak i-Flow Nitrogen Generator presents a cost-effective solution. Producing Nitrogen with a purity of 99.999% can be achieved at approximately 8 cents per m3. This translates to a remarkable reduction, making it only 1/10th of the cost compared to purchasing Nitrogen from a gas company. The substantial cost savings become a compelling factor for electronics manufacturers looking to enhance their operational efficiency and bottom line.

Quick ROI

Investing in an in-house Nitrogen Generator proves to be a financially savvy decision, with the typical Return on Investment (ROI) ranging from 8 to 12 months. This swift return underscores the economic viability of such a system. Moreover, considering the longevity of a well-maintained Nitrogen Generator, often exceeding 15 years, the practical outcome is like a virtually free supply of Nitrogen for over 14 years. This not only enhances the financial attractiveness of the investment but also contributes significantly to long-term cost savings and operational stability for electronics manufacturers.

Stop Waiting & Coordinating Nitrogen Deliveries

The dependence on third-party suppliers for Nitrogen delivery often introduces challenges in coordination, leading to potential delays and disruptions. Electronics manufacturing processes can be particularly sensitive to such interruptions, with the risk of running out of Nitrogen or the need for constant vigilance over the remaining gas in cylinders or dewars. The absence of Nitrogen poses a significant threat, exposing soldering processes to an oxygen-rich environment and increasing the likelihood of oxidation. Whether the Nitrogen requirement is intermittent or continuous, an in-house Nitrogen Generator eliminates these coordination challenges by providing a seamless and on-demand Nitrogen supply, ensuring a consistent and reliable source for electronics manufacturing operations.

Expandability

In the era of Industry 4.0, where digitization is driving exponential growth in the electronics sector, manufacturers are continually expanding their capacities and integrating more soldering machines. Addressing the need for scalable solutions, the installation of a modular and expandable Nitrogen Generator emerges as the optimal choice. This innovative approach offers the flexibility to increase capacity within minutes, akin to assembling building blocks. Imagine doubling the capacity of a Nitrogen Generation system by seamlessly adding two banks, as illustrated in the accompanying images. This adaptability positions manufacturers to meet the ever-growing demands of the electronics industry efficiently and stay ahead in the dynamic landscape of technological advancement.

Eliminate Inflation

In light of the Producer Price Index, the Industrial Nitrogen Gas price has experienced a substantial surge of nearly 50% since January 2020. In contrast, extracting Nitrogen from the atmosphere, a process inherent in on-site generation, remains unaffected by external price fluctuations. Furthermore, the hydro cost for Nitrogen production has seen only modest increases, typically in the low single-digit percentage points. This stark contrast emphasizes the financial prudence of becoming independent and assuming control over Nitrogen Gas production. Choosing an in-house Nitrogen Generator emerges as a far more cost-effective and efficient approach to meet Nitrogen requirements, shielding manufacturers from the impact of inflation on industrial gas prices.

Worried about the Gas Quality

The adage "You can't improve what you don't measure" holds true, especially when it comes to delivered gas. In conventional scenarios, customers lack the means to check the purity of delivered Nitrogen gas without special tools. In stark contrast, Nitrogen Generators are equipped with an oxygen PPM sensor, enabling users to precisely measure the purity of Nitrogen produced. While for many Nitrogen Generator suppliers this feature may be optional, Peak i-Flow Nitrogen Generators set a standard by including the nitrogen purity sensor as a fundamental component. This eliminates guesswork, providing users with a reliable and standardized method to ensure Nitrogen purity, offering peace of mind in every production cycle.

No More Freezing Lines

One common grievance among users involves the freezing of Nitrogen lines in Dewars, attributed primarily to two factors. Firstly, the extremely low temperature of Liquid Nitrogen stored in the Dewar is around -200 °C. Secondly, the fluctuating demand for Nitrogen gas worsens this issue. In contrast, the gas generated by a Nitrogen Generator emerges at ambient temperature, eliminating the risk of freezing lines. This distinction underscores a key advantage of on-site Nitrogen generation, ensuring a consistent and unconstrained supply of Nitrogen without the challenges posed by freezing lines, a common concern associated with conventional Dewar systems.

Low/No Maintenance Cost

In the current era, Nitrogen Generators have evolved to require minimal maintenance. Take, for instance, the Peak i-Flow Nitrogen generators, which typically necessitate only one service in a period. Moreover, this service is primarily associated with routine tasks such as changing the filters and mufflers. This streamlined maintenance requirement not only reduces downtime but also contributes to low or even negligible maintenance costs. Embracing modern Nitrogen Generators translates into a hassle-free and cost-effective solution, aligning with the efficiency demands of contemporary electronics manufacturing.

Environment Friendly

A significant environmental benefit of adopting an in-house Nitrogen Generation approach lies in the substantial reduction of carbon footprint. Traditional reliance on delivered Nitrogen involves frequent truck deliveries, contributing to emissions and transportation-related environmental impacts. With the shift to on-site Nitrogen Generation, there is a notable elimination of the need for these truck deliveries. This not only reduces the carbon emissions associated with transportation but also aligns with sustainable practices by minimizing the environmental impact of logistics in the Electronics Manufacturing supply chain. As industries increasingly focus on eco-friendly solutions, the transition to in-house Nitrogen Generation emerges as a pivotal step in mitigating the environmental impact of manufacturing processes.

Making the Move to InHouse Nitrogen in Electronics Manufacturing

In summary, Onsite Nitrogen Generation Solutions revolutionize Electronics Manufacturing, ensuring high-quality PCB assemblies crucial for Industry 4.0 growth. The traditional reliance on delivered Nitrogen presents challenges, from escalating costs to environmental impact. Adopting an in-house Nitrogen Generator, like the Peak i-Flow, offers cost efficiency, rapid ROI, scalability, and a consistent, on-demand supply. Beyond financial benefits, it reduces the carbon footprint by eliminating truck deliveries. This strategic move not only addresses current challenges but also positions manufacturers for long-term success in a competitive and environmentally conscious industry.

Learn how to Boost Product Freshness with On-Site Nitrogen in Modified Atmosphere Packaging

Thu, 30 Nov 2023 16:10:26 GMT

Let's commence with the severe realities: according to the World Health Organization, nearly 10% of the global population falls ill due to consuming contaminated food, resulting in a staggering 420,000 annual fatalities. In the United States, approximately 40% of food ends up in landfills, a substantial portion of which is attributed to food spoilage, as revealed by the Harvard School of Engineering. Various factors, including bacteria, chemicals, heat, light, and surprisingly, oxygen, contribute significantly to this food spoilage problem.

Surprising Culprit: Oxygen's Role in Food Spoilage

The presence of oxygen might raise eyebrows, and you're not alone if you find it unexpected. Often Oxygen (O 2 ) is perceived as a life-saving component, oxygen constitutes 21% of our atmosphere, alongside 78% nitrogen (N 2 ) and 1% of other gases. When food is exposed to atmospheric air, it comes in contact with a 21% oxygen concentration, providing an ideal environment for microorganism growth and accelerating food spoilage. Food manufacturers and packagers are aware of these problems, and many have turned to Modified Atmosphere Packaging (MAP) machines to extend the shelf life of their products.

Modified Atmosphere Packaging (MAP): A Game-Changing Solution

In straightforward terms, Modified Atmosphere Packaging (MAP) involves altering the composition of gases used in food packaging compared to the atmospheric mix. This innovative process predominantly employs a gas mix high in Nitrogen, often reaching around 99%, thereby restricting the oxygen content to 1% or even lower. The global market for modified atmosphere packaging, projected to reach a staggering $25 billion USD in the next decade, has already established a significant presence with a current market size of $16 billion USD as reported by market researcher Fact.Mr in 2023. This growth, expected at a Compounded Annual Growth Rate (CAGR) of 4.5%, attests to the increasing recognition of MAP's pivotal role in food preservation.

Understanding Advantages and Disadvantages of MAP

The paramount advantage of Modified Atmosphere Packaging lies in its ability to extend the shelf/storage life of food products, enabling prolonged storage, and facilitating long-distance or remote shipping with minimal concerns regarding spoilage. Beyond this, MAP champions an organic approach to packaging by eliminating the need for chemicals traditionally used in food storage. Moreover, it acts as a guardian of physical attributes by preserving the colour, taste, texture, and overall quality of the product. However, like any technological innovation, MAP is not without its challenges. A nuanced understanding and skilled handling of the gases required for MAP pose hurdles. Additionally, there's an associated cost, primarily tied to the optional feature of Nitrogen flushing in packaging machines, along with the ongoing expense of acquiring the necessary gases. Despite these challenges, the undeniable benefits make MAP a transformative force in the space of food packaging and preservation.

Tailoring Gas Composition for Optimal Preservation

Within the realm of modified atmosphere packaging, three key gases take centre stage: Nitrogen (N 2 ), Carbon Dioxide (CO 2 ), and Oxygen (O 2 ). Among these, Nitrogen emerges as the predominant player, constituting the majority of the gas mix used in packaging. Its odourless, tasteless, colourless, and non-toxic properties, coupled with its abundant presence in the atmosphere, render Nitrogen exceptionally well-suited for Modified Atmosphere Packaging. Yet, adhering to the principle that one size doesn't fit all, the gas composition varies based on the specific requirements of different food products. Delving into the details of this tailored approach, we've conducted an exhaustive exploration of scholarly articles and performed various gas purity tests in the food industry, culminating in a comprehensive table below. This table outlines the recommended purity levels for Nitrogen and other gases in Modified Atmosphere Packaging, recognizing that the optimal gas mix is contingent on the unique characteristics and preservation needs of each food item.

When it comes to Modified Atmosphere Packaging (MAP), one cannot emphasize enough the importance of adhering to proper storage conditions in order to maximize the recommended shelf life of food products. In fact, the shelf life outlined in the table provided is contingent on maintaining specific storage conditions, including temperature, sunlight exposure, humidity levels, and more, as specified by the manufacturer's guidelines. It is through this meticulous attention to detail that the true potential of MAP is harnessed, allowing for optimal food preservation.

Temperature control plays a significant role in the effectiveness of MAP. Different food products have different temperature requirements for storage. For example, perishable items such as fresh meat and produce may require lower temperatures to slow down the growth of spoilage microorganisms, while other packaged foods may require slightly higher temperatures to maintain their quality over an extended period. By closely monitoring and maintaining the recommended temperature range, food manufacturers can ensure that the desired atmosphere within the packaging is achieved and maintained throughout the product's shelf life.

Sunlight exposure is another critical factor to consider when utilizing MAP. Light, especially ultraviolet (UV) radiation, can have detrimental effects on food quality and accelerate the degradation process. Packaging materials with UV-blocking properties can help mitigate the harmful effects of sunlight exposure and prolong the freshness of the packaged food. Additionally, storing MAP-packaged products in dark or opaque containers further reduces the risk of light-induced deterioration, ensuring that the food maintains its optimal quality for an extended period.

Humidity control is equally important when it comes to MAP. Excessive moisture can lead to the growth of mold and bacteria, ultimately leading to spoilage. On the other hand, extremely dry conditions can cause the food to become dehydrated and lose its original texture and flavor. Therefore, maintaining the appropriate humidity level within the packaging is crucial for preserving the quality and freshness of the food. Through the use of moisture-absorbing or moisture-releasing agents within the packaging, food manufacturers can effectively regulate the humidity and create an ideal environment for the product.

Furthermore, it is worth noting that the manufacturer's guidelines are the key to unlocking the full potential of MAP. These guidelines are developed based on extensive research and testing to ensure that the desired gas mixture and packaging materials are utilized correctly. Each food product may have specific requirements, and following the manufacturer's recommendations guarantees that the optimal atmosphere is achieved and maintained. Adhering to these guidelines also plays a significant role in food safety, as improper use of MAP can potentially result in the growth of harmful bacteria or compromise the overall quality of the product.

To summarize, Modified Atmosphere Packaging offers immense benefits in terms of extending the shelf life of food products by virtue of Nitrogen and other gases compositions. However, realizing these benefits requires a steadfast commitment to proper storage conditions. By diligently monitoring and controlling factors such as temperature, sunlight exposure, humidity levels, and following the manufacturer's guidelines, food manufacturers can harness the full potential of MAP and ensure the preservation of product quality, freshness, and safety.

Nitrogen Flushing in MAP: Addressing Critical Needs

The data in the table above underscores the prevalence of Nitrogen gas flushing in the Modified Atmosphere Packaging (MAP) industry. When it comes to meeting the Nitrogen needs for this critical process, two primary avenues emerge: external delivery to food manufacturing facilities through cylinders, dewars, and storage tanks, or in-house production facilitated by a Nitrogen Generator. While food manufacturing operations often run continuously, the variability in demand for different food products underscores the need for adaptable Nitrogen supplies to ensure seamless packaging.

Adaptable Nitrogen Supplies: A Necessity for Seamless Packaging

In facilities where production aligns with demand, the reliance on delivered Nitrogen in gas form demands meticulous supply chain coordination. Interruptions or inadequacies in this coordination can grind production to a halt, resulting in significant losses. On the contrary, opting for on-site Nitrogen Generation via a Nitrogen Generator eliminates these supply chain and coordination challenges. With an on-site generation system, the food manufacturer is not dependent on external entities for Nitrogen gas delivery, ensuring a continuous and reliable supply.

In-House Nitrogen Generation: On Demand Gas Availability

For those grappling with the inconsistency of Nitrogen demand and relying on Dewars for MAP Nitrogen supply, a distinct set of challenges emerges. The sub-zero temperatures of Liquid Nitrogen within Dewars can lead to the freezing of Nitrogen lines, causing operational disruptions. To avoid these operational hiccups, installing Nitrogen Generators emerges as the optimal solution. Nitrogen Generators provide on-demand gas, eliminating concerns about frozen lines and offering a seamless and efficient means of fulfilling Nitrogen needs precisely when required.

In-House Nitrogen Generation: A Strategic Cost-Saving Approach

In the current landscape marked by a surge in food prices due to inflation, individuals are struggling with the challenge of managing their grocery bills. In this scenario, the adoption of in-house Nitrogen Generation Systems within food facilities emerges as a powerful strategy to ease overhead costs for food plants. The conventional method of procuring delivered Nitrogen (N 2 ) for Modified Atmosphere Packaging (MAP) incurs a significant expense of around 80 cents per m3. In stark contrast, the in-house production of Nitrogen slashes this cost dramatically, at a mere 5 cents per m3. This not only translates to substantial immediate savings but also insulates food facilities from the risk of inflation that has seen delivered N 2 prices spike by 50% over the last three years. Drawing insights from recent studies conducted at two food facilities in Ontario, Canada—Customer#1 (a Vegetable Packaging Plant) and Customer#2 (a Coffee Packaging Plant)—the potential for savings is compelling. Projections indicate that Customer#1 stands to save $660,000, while Customer#2 is poised to realize savings totaling $1.5 million over the next decade by transitioning to in-house Nitrogen gas production facilitated by Nitrogen Generators.

The Return on Investment (ROI) for a Nitrogen Generator tailored for Modified Atmosphere Packaging typically materializes within a remarkably short timeframe, ranging between 10 to 12 months. Moreover, the expected operational life of a well-maintained robust generator like Peak Gas i-Flow extends to 20 years, ensuring a prolonged period of cost-effectiveness. An often overlooked yet crucial factor of in-house Nitrogen production is its positive impact on the environment. By eliminating the need for trucks to deliver gas, the carbon footprint associated with transportation is eliminated, aligning with sustainable practices and contributing to a greener future.

Monitoring and Ensuring Purity for Quality Assurance

Recognizing the pivotal role that high Nitrogen content and low Oxygen content play in food packaging, it becomes imperative to adhere to the adage that you can't improve what you don't measure. Unfortunately, the significance of regularly testing the purity of Nitrogen used in food packaging is often overlooked in many plants. This oversight can have severe repercussions, leading to compromised freshness, diminished shelf life, and even potential spoilage. In an industry where quality and safety are non-negotiable, neglecting this critical aspect is a risk we cannot afford to take. The Peak i-Flow Nitrogen Generators set themselves apart by incorporating an inbuilt purity sensor as a standard feature, constantly displayed on the screen. The display provides real-time information in either percentage purity or parts per million (PPM), catering to specific requirements. This data can also be remotely monitored with analytics along with optional interfaces for live status tracking and BMS integration.

Proactive Purity Monitoring for Delivered Nitrogen

For food plants relying on delivered Nitrogen gas, a proactive approach involves consistent monitoring of purity using dedicated meters or sensors. Regularly assessing the purity of Nitrogen ensures that products consistently meet the highest quality standards.

This not only fosters customer satisfaction but also contributes to the reduction of food waste and the preservation of the environment. By taking this proactive step, we can reinforce the integrity of products, enhance food safety, and extend the shelf life of packaged goods. Canadian Food Inspection Agency (CFIA) has not only published the importance of modified atmosphere packaging to increase the shelf life of food products but also mentioned the significance of performing the regular headspace gas analysis in the testing for the integrity of the packaging.

Adapting to Changing Demands with Scalable Solutions

Addressing the concern of adapting to the escalating demand for Nitrogen when integrating new or multiple Modified Atmosphere Packaging machines becomes paramount. Fortunately, reputable Nitrogen Generators such as the PeakGas i-Flow Nitrogen Generator are equipped with scalable and expandable features, rendering them future-proof solutions. This means the flexibility to incorporate additional Peak Carbon Molecular Sieve (CMS) banks post-initial installation. These added modules serve to augment maximum flow rates while upholding specified purity levels, ensuring seamless adaptation to evolving requirements. Visualized through the accompanying image, this modular approach allows for the incorporation of extra modules at a later date, presenting a dynamic solution capable of growing alongside the demands of the food packaging facility.

Nitrogen as a Preventive Measure Against Contamination

The COVID-19 pandemic has underscored the terrifying nature of viruses and bacteria, with a heightened awareness of airborne pathogens present in the ambient air. What may be less evident is the potential for airborne bacteria in a compressed air system, where the concentration is significantly amplified compared to ambient air. Typically, the concentration is seven times more severe when the system pressure is at 7 barg. Therefore, utilizing regular compressed air for food packaging not only exposes products to spoilage risks but also poses health hazards. In contrast, the use of Nitrogen in Modified Atmosphere Packaging serves as a preventive measure against bacterial growth. Moreover, Nitrogen produced through the Pressure Swing Adsorption (PSA) technique yields bone-dry Nitrogen with a dew point of -70 degrees Celsius. This dry environment impedes bacterial growth as they do not attain the requisite humidity levels for proliferation.

Enhancing Safety with Sterile Filtration

While employing Nitrogen as a protective measure, it's advisable to incorporate a sterile filter when applications have zero tolerance for contamination, the addition of a sterile, compressed gas filter assembly will ensure you have a risk mitigation strategy in place. Ultrafilter’s Stainless-Steel P-EG housing, with its non-shedding P-SRF 0.2µ steam sterilizable filter element , diminishes the impact of an unwanted event to further enhance the safety and hygiene of the food packaging process.

In Conclusion: On-Site Nitrogen Generation as a Multifaceted Solution

In conclusion, the adoption of on-site Nitrogen generation for Modified Atmosphere Packaging (MAP) emerges as a strategic and multifaceted solution to extend the shelf life of food products, tackle industry challenges, and prioritize quality assurance. This approach offers substantial benefits in terms of cost savings, environmental sustainability, and the flexibility to meet evolving demands. By utilizing on-site Nitrogen generation, food manufacturers can ensure freshness, reduce waste, and demonstrate a commitment to both customer satisfaction and environmental responsibility. With the use of cutting-edge technology and scalable solutions like Peak i-Flow Nitrogen Generators, companies can optimize their packaging processes, improve product quality, and enhance their overall competitiveness in the market. By leveraging MAP technology, food manufacturers can create a controlled atmosphere that helps maintain the desired gas mixture, such as reducing Oxygen levels and enhancing Nitrogen levels, thereby effectively extending the shelf life of perishable products like fresh fruit, nuts, and produce. This not only reduces spoilage and food waste but also enhances food safety and quality control measures. Moreover, on-site Nitrogen generation eliminates the need for frequent Nitrogen deliveries and reduces reliance on external suppliers, which translates to significant cost savings. Additionally, this approach eliminates the carbon footprint associated with transportation and storage of nitrogen gas cylinders, contributing to a more sustainable and environmentally friendly packaging process.

By implementing on-site Nitrogen generation systems, food manufacturers gain the flexibility to adjust nitrogen levels and tailor the packaging atmosphere according to the specific needs of different products, ensuring optimal freshness and quality. This versatility allows companies to adapt to shifting market demands and deliver products with extended shelf life, meeting the expectations of both retailers and consumers. The adoption of on-site Nitrogen generation for MAP is no longer just a strategic move; it is a commitment to excellence in food packaging, offering a comprehensive solution that addresses key industry challenges while maximizing product quality , minimizing waste, and demonstrating environmental responsibility.

References :

World Health Organization - Food Safety

The Grapevine Magazine - Article

Compressed Air Best Practices - Article

Government of Canada - Inspections: Shelf Studies

Government of Canada - Inspections: Preventive Controls

Book: Principles and Application of Modified Atmosphere Packaging of Foods – Second Edition – Edited by B.A. Blakistone.

Is On-Site Nitrogen & Oxygen Generation the Key to Cutting Costs and Improving Quality for Businesses?

Mon, 23 Oct 2023 21:01:05 GMT

Laser cutting, a technology that emerged in the 1960s, has transformed the sheet metal industry. Its roots can be traced back to the aircraft manufacturing industry, but today, it spans the gamut from giant automobile plants to niche nameplate engraving businesses. The evolution of laser-cutting technology has been relentless, ascending to unprecedented levels of precision, operational ease, speed, and integration with Industry 4.0 technologies. One incontrovertible fact remains: laser cutting presents both direct and indirect monetary benefits, relegating traditional cutting methods to the past. Reduced labour costs and minimal material wastage are compelling reasons for the industry's widespread adoption of this transformative technology. Yet, as we venture into the field of higher kilowatt (KW) Fiber laser cutting machines, capable of slicing through tough, thick metals like stainless steel and aluminium sheets nearing 1.5 inches at astonishing speeds, a new challenge emerges. The voracious appetite for cutting gases such as Nitrogen and Oxygen, integral to the laser cutting process, is undeniable. Adding complexity to the equation, the continuous ascent of Nitrogen and Oxygen prices by external gas companies and lingering supply chain challenges have left the laser-cutting industry at a crossroads. The need for a more reliable and cost-effective solution is paramount. This blog explores how on-site Nitrogen and Oxygen generation holds the key to not only managing costs but also elevating the quality of laser cutting in the modern business landscape.

In the world of laser cutting, challenges related to cutting gases like Nitrogen (N ₂ ) and Oxygen (O ₂ ) have a habit of piling up—challenges that demand an innovative response. The solution? It's time for the laser cutting industry to seize its own destiny, becoming self-sufficient by embracing on-site Nitrogen and Oxygen Generators. As the saying goes, "One Size Does Not Fit All," and this holds true for on-site gas generation as well. A comprehensive understanding of gas demands, the nature of cutting materials, required cutting pressures, and gas purity levels is essential. When it comes to designing a system for Nitrogen and Oxygen Generation, businesses should look beyond generic operational manual references. Why? Because in many cases, the cutting gas requirements stated in manuals are far from accurate, often overestimating needs. We're talking figures as high as 80 plus cubic feet per minute (CFM) at 99.999% purity. What's the key to a solution that fits like a glove? A detailed Demand Analysis, tailored to your specific requirements. It's a strategy that allows you to design a Nitrogen and Oxygen Generation system that aligns perfectly with your needs, steering you clear of unnecessary costs and inefficiencies.

Let's embark on a journey to understand the intriguing world of gas purity and how it dynamically adapts to the unique demands of end users. Gas purity isn't just a technicality; it's a cornerstone of the precise artistry performed by a laser-cutting machine. And this artistry differs dramatically from the meticulous crafting of high-end stainless-steel appliances to the rugged functionality of auto parts that will ultimately be welded into larger assemblies. Imagine this: you're utilizing gas delivered by an external company, arriving in the customary forms of cylinders, Dewars, or liquid nitrogen tanks. Typically, these deliveries adhere to predefined purity standards mandated by the gas companies. As a user, you're handed a predetermined purity level with no control over the matter. It's like paying a premium for Nitrogen with a dazzling 99.999% purity when your specific application might only require a modest 99%. Or, it could be the reverse, where you're left with less pure gas than needed, jeopardizing the quality of your cuts. Here is an example of how Nitrogen purity can influence the quality of cut by a laser cutting machine:

Now, envision the alternative approach: embarking on on-site nitrogen generation, giving you complete control of the helm. Let's delve into the Peak Nitrogen Generator as an illustration, providing a spectrum of purity options ranging from 95% to an astounding 99.9995%. This transformative technology puts you firmly in the driver's seat, allowing you to fine-tune the nitrogen gas purity to your exact specifications. What's even more remarkable is the system's ability to adapt purity levels on-site, eliminating any worries about modifying the generator itself, all while curbing oxidation concerns.

In the intricate dance of designing a nitrogen/oxygen generation system for laser cutting, understanding the flow required to fuel these precision machines takes centre stage. Strikingly, not all lasers are created equal, despite sharing the same kilowatt (KW) rating. Why? Because laser cutting's versatility spans a spectrum of materials and varying thicknesses. Laser operators skillfully choose nozzle sizes based on software requisites, resulting in flow requirements that can fluctuate from as low as 10 cubic feet per minute (CFM) to a robust 60 plus CFM. Our image below vividly illustrates the theoretical nitrogen consumption of a laser-cutting machine across different pressures and with diverse nozzle sizes.

It's a visual reminder that the flow variable is indeed fluid, adapting to each unique cutting task. Many sheet metal facilities gravitate toward a consistent menu of product demands, cutting similar materials day in and day out, with infrequent nozzle changes. For these scenarios, a meticulous Demand Analysis is highly recommended to pinpoint precise flow requirements, aligning the system design accordingly. The right design for an on-site generation system is the linchpin for operational success, and it's a task best entrusted to the professionals. A comprehensive study carried out by experts ensures that your system is flawlessly tuned to your business's needs. Below, you'll find a glimpse of the results from a Nitrogen Demand Analysis conducted at a laser cutting facility in Ontario, Canada, underscoring the practical significance of this approach.

In the world of laser cutting, achieving self-sufficiency in gas generation isn't a one-note melody; it's a symphony of elements harmonizing perfectly to create the desired result. While the generators themselves (be it for Nitrogen or Oxygen) are a crucial part of this orchestration, they are not the sole stars. To bring this composition to life, a precisely sized compressed air system must take centre stage. This ensemble comprises an air compressor, air dryer, filtration system, Nitrogen Booster or Oxygen Booster, storage tanks, and meticulously calibrated piping. Each component plays a pivotal role in the success of the complete solution. Laser cutting necessitates high-pressure gas in the range of 200 to 500 psi. The importance of selecting each equipment piece with precision cannot be overstated. For instance, when achieving a final gas pressure exceeding 400 PSI, it's prudent to pair this with an air compressor rated at 150 psi or above. Why? This optimized combination ensures an ideal compression ratio, allowing the booster to seamlessly elevate gas pressure from low to high. Consider, for example, laser applications that require only 175 to 190 PSI Nitrogen pressure for sheet metal cutting. Kaeser’s 217 PSI screw air compressors prove to be the ideal matchmakers, guaranteeing a consistent supply of high-quality nitrogen gas to fuel your laser cutting ambitions.

A thoughtfully designed On-Site Nitrogen or Oxygen Generation system for laser cutting doesn't just offer a single benefit; it opens the door to a treasury of advantages for the sheet metal industry.

Cost Benefits : The foremost benefit revolves around cost savings. Consider this: gas companies typically charge a hefty 50 cents per cubic meter (m3) for Nitrogen. In stark contrast, high-pressure Nitrogen can be produced on-site for as low as 6 cents per m3. It's a substantial reduction that directly bolsters your bottom line.
Inflation Resilience : The second benefit offers a welcomed peace of mind. Inflation can be a formidable adversary, especially in the realm of delivered Nitrogen and Oxygen gases. On-site generation acts as a safeguard, shielding your operation from the unpredictable price surges that external suppliers can impose.
No Contracts : For small to medium-scale sheet metal industries, navigating complex legal contracts with multinational gas giants can be a formidable task. On-site generation, however, aligns perfectly with the entrepreneurial spirit that drives many of these businesses. It eliminates the need for complex contracts and puts you in complete control. You produce the gases precisely when you need them, without fear of the dreaded "Force Majeure" clause that gas companies invoke when gas requirements fall below agreed minimums. With on-site generation, you pay only for what you need.
Environmental Impact : By producing your own gases on-site, you join the league of environmentally conscious businesses. No more reliance on gas deliveries means a significant reduction in carbon emissions. In an era where environmental responsibility is paramount, this move is not just a cost-saving strategy but also a significant step toward reducing your carbon footprint.
Quality Control : When you generate gases in-house, you wield precise control over their purity and consistency. This control translates to higher quality cuts, vital for industries such as aerospace, automotive, and electronics, where precision is non-negotiable.
Dependable Supply : The COVID-19 pandemic revealed the vulnerability of supply chains. On-site generation ensures a dependable supply of essential gases, mitigating the risks associated with external disruptions. Whether your gas needs are continuous or intermittent, on-site generation adapts to your requirements with unwavering reliability.
Customization : Your gas needs are unique, and one-size-fits-all solutions often fall short. On-site generation allows for a tailored approach, from adjusting gas purity to accommodating fluctuations in flow requirements. Your gas generation system adapts to your specific demands, ensuring that you receive precisely what you need, no more and no less.

In the realm of sheet metal fabrication, where precision and efficiency stand as paramount objectives, the adoption of On-Site Nitrogen and Oxygen Generation signifies more than a mere modernization; it represents a revolutionary leap into the future. The benefits it offers span financial savings, environmental stewardship, operational excellence, and unprecedented control. Through the utilization of a nitrogen generator, the production of nitrogen gas becomes an integral part of your operations, eliminating the need for reliance on external sources and the associated costs. This shift not only results in cost reduction but also aligns your business with the imperative of environmental responsibility, as it curtails the carbon footprint traditionally associated with compressed air and external gas sources. The quality of metal cuts attains an unparalleled level, meeting the rigorous demands of precision-centric industries.

In the face of global supply chain uncertainties, nitrogen (N ₂ ) and oxygen (O ₂ ) generation on-site provides a dependable supply of essential gases, establishing a safety net during times of disruption. Liberated from the constraints of intricate contracts, this approach affords operational flexibility. Your nitrogen and oxygen generation system evolves beyond a mere component; it transforms into a bespoke tool crafted to meet your unique requirements. In the pursuit of elevated quality, efficiency, and profitability, On-Site Nitrogen and Oxygen Generation serves as the guiding compass. It symbolizes a commitment to a greener, more precise, and self-reliant future, addressing the growing imperative of environmental responsibility. As we navigate the myriad benefits on this journey, it becomes evident that the pathway to a more sustainable, efficient, and profitable sheet metal business commences right here.

Boost Performance and Savings with OnSite Oxygen and Nitrogen Generation

Mon, 11 Sep 2023 19:55:48 GMT

The impact of compressed air on industries globally is undeniable, spanning from small tire shops to vast oil and gas sectors, as well as specialized domains like laboratories and pharmaceuticals. Amid this industrial transformation, many have taken control by employing in-house air compressors, air dryers, and related equipment to autonomously generate compressed air. Inhouse compressed air generation eliminates the need for relying on external sources, whether through cylinder bulk packs, Dewars, or tankers delivering compressed air.

However, when the demand arises for specialized gases such as Nitrogen and Oxygen, a dependency on gas companies often prevails. In an era where humanity is achieving feats like landing spacecraft on the moon's South Pole, it's imperative to question the conventional and inefficient practice of sourcing Nitrogen and Oxygen through external gas suppliers. Remarkably, our atmosphere contains an abundant supply of two pivotal gases: Nitrogen, constituting 78.09%, and Oxygen, comprising 20.95%.

When an air compressor is in operation, it draws air from the surrounding atmosphere, compresses it, and then delivers it under pressure to meet specific needs. This compressed air is a mixture of various gases, including Nitrogen (N2), Oxygen (O2), and other components. To put it simply, if a customer requires Nitrogen, an Oxygen filter is necessary. Conversely, if the process demands Oxygen, a Nitrogen filter should be added to the line. This adaptation ensures the fulfillment of both Nitrogen and Oxygen requirements. These filters are commonly referred to as Nitrogen Generators and Oxygen Generators. The image below provides a straightforward depiction of an Oxygen Filtration system.

Regarding on-site Nitrogen generation, there are two primary categories available:

Pressure Swing Adsorption (PSA) Nitrogen Plant / Generator
Membrane Nitrogen Generator

Similarly, for on-site Oxygen generation, two primary types are prevalent:

Pressure Swing Adsorption (PSA) Oxygen Plant / Generator
Vacuum Pressure Swing Adsorption (VPSA) Oxygen Plant / Generator

Let's now delve deeper into the extensive benefits of on-site Nitrogen and Oxygen Generation.

1. Environmental Advantage

2. Cost Savings

Another significant advantage of on-site Nitrogen and Oxygen Generation lies in the realm of cost efficiency. This advantage is magnified through the production of Nitrogen and Oxygen gases within your own premises, obviating the reliance on external suppliers. This strategic transformation has the potential to yield substantial savings for your organization. Transitioning towards in-house production of Nitrogen and Oxygen can trigger a noteworthy reduction in costs.

To provide a tangible perspective, let's consider the pricing dynamics. A Nitrogen gas supplier typically charges around 50 cents per cubic meter (m3), and this doesn't even encompass ancillary expenses like tank rentals and duties. In sharp contrast, producing Nitrogen in-house can be achieved at approximately 6 cents per m3, leading to remarkable savings. While the cost of producing on-site Oxygen slightly exceeds that of Nitrogen, around 18 cents per m3, it still presents a significant reduction compared to purchasing from external suppliers. This substantial cost differential underscores the compelling financial rationale behind on-site gas generation.

3. Price Stability

Shield yourself from fluctuating prices. Moreover, by embracing this approach, users can shield themselves from the risks associated with price escalations. The recent trajectory, as indicated by the U.S. Bureau of Labor Statistics, has been rather unsettling. Over the past three years, the Producer Price Index of Industrial Nitrogen Gas has surged by nearly 50% starting from January 2020.

Remarkably, the situation is even more concerning in the realm of industrial Oxygen gas pricing. Over the same three-year span, the Producer Price Index recorded an astonishing 80% increase. These steep and consistent price hikes underscore the volatility and uncertainty inherent in relying on external suppliers. On the contrary, on-site generation empowers businesses to escape this price rollercoaster and establish more predictable and favorable cost structures.

4. Enhanced Safety

There are three prevalent methods for delivering Nitrogen and Oxygen: Gas Cylinders, Dewars, and Bulk Liquid Tanks. The inherent risks tied to these transported gases are visually evident in the images below.

Gas Cylinder: Delivered at high pressure (200 – 300 BarG).
Dewar: Delivered in a liquid state.
Bulk Liquid: Transported as cryogenic Nitrogen or Oxygen in liquid form.

These delivery methods bring forth substantial safety concerns associated with Nitrogen and Oxygen. Navigating these gases demands heightened precautions upon their arrival. A particularly hazardous aspect arises when liquid Nitrogen transforms into its gaseous state, expanding nearly 700 times and generating formidable force upon vaporization. Rapid freezing can lead to dire consequences, including frostbite or worse. The lack of proper ventilation during swift liquid Nitrogen release could even escalate asphyxiation risks.

These complexities and dangers can be sidestepped by initiating in-house generation of Nitrogen and Oxygen. The installation of a Nitrogen/Oxygen Generator presents a straightforward process that eliminates all perils related to transportation. Moreover, the transition from purchasing Nitrogen and Oxygen in liquid form to producing them in their gaseous state in-house not only mitigates risk but also poses a critical question: Why opt for the liquid form when the gas form suffices for your needs? Below is an image depicting a Simple Generator installation in Ontario, Canada.

5. On-Demand Generation

Onsite generation eliminates the Supply Chain challenges. The world suffered catastrophic losses during the Covid 19 pandemic and companies struggled to fulfill the soaring demand for Oxygen across various regions. It was during these trying times that in-house Oxygen generators emerged as saviors, bridging the gap for countless users. Unlike those reliant on external suppliers and waiting for gas deliveries, generator users experienced uninterrupted access.

Whether your gas (N2 and O2) demands are constant or intermittent, an in-house generation system tailors itself to your needs. The system adapts, ensuring that a continuous supply of gas is readily available whenever required. This flexibility not only bolsters operational resilience but also underscores the autonomy and reliability that on-site generation brings to your business.

6. Say No To Contracts (Flexibility and Freedom)

The majority of customers find themselves obligated to sign intricate legal contracts when procuring gas from external suppliers. These contracts often contain complex clauses, making it challenging for users to grasp the potential consequences of non-compliance. The beauty of on-site generators lies in the unfettered flexibility they offer. They eliminate the need for binding contracts, enabling users to seamlessly initiate the in-house production of Nitrogen and Oxygen without the constraints of legal agreements. This liberation empowers businesses with the autonomy to shape their gas production strategy as needed, unburdened by contractual intricacies.

In conclusion, it's time to harness the abundance of Nitrogen and Oxygen that nature provides. By embracing on-site generation of these gases, industries can not only enhance their operational efficiency but also contribute to a greener planet. The opportunities are vast, from cost savings and environmental preservation to seamless accessibility and enhanced safety. The time has come to harness the resources around us and take charge of our own Nitrogen and Oxygen needs , transcending the limitations of traditional supply chains. Start producing in-house and unlock a new era of performance and savings.