Oxygen and carbon dioxide analyzer solutions for modified atmosphere packaging (MAP), food processing, beverage production, inert gas blanketing, and package quality verification. Southland Sensing analyzers accurately measure oxygen and CO₂ concentrations to verify package atmosphere, optimize gas mixtures, reduce spoilage, extend shelf life, and maintain consistent product quality from production through distribution.
Modified Atmosphere Packaging (MAP) is one of the most effective methods for extending the shelf life and preserving the quality of fresh and processed foods. By replacing ambient air with carefully controlled mixtures of nitrogen, carbon dioxide, and oxygen, manufacturers can slow oxidation, inhibit microbial growth, preserve product appearance, and maintain freshness throughout storage and distribution. The optimal gas composition varies by product—fresh meats often require elevated oxygen concentrations to preserve color, while dairy products, bakery items, coffee, fresh produce, seafood, snack foods, and ready-to-eat meals typically rely on low residual oxygen and controlled carbon dioxide levels to maximize shelf life and maintain product quality.
Beyond packaging, oxygen and carbon dioxide measurement play an important role throughout food and beverage manufacturing. Beverage producers use carbon dioxide for carbonation and inert gas blanketing to protect products from oxidation while maintaining dissolved gas concentrations and product consistency. Nitrogen is widely used for tank blanketing, product transfer, and package flushing, requiring continuous verification of gas purity to ensure reliable operation. Many facilities also utilize onsite PSA or VPSA nitrogen generation systems, where oxygen analyzers continuously verify nitrogen purity before the gas is introduced into production processes.
This application note examines the critical gas measurement points throughout modified atmosphere packaging, food processing, beverage production, and onsite gas generation, while identifying the Southland Sensing oxygen and carbon dioxide analyzers best suited for each application.
Modified Atmosphere Packaging (MAP) Maintaining the correct gas composition within food packaging is critical to extending shelf life and preserving product quality. Our analyzers monitor oxygen levels in real-time during the gas flushing and sealing process to ensure the inert environment is correctly established, preventing oxidation and microbial spoilage for meats, dairy, produce, and baked goods.
Beverage Processing & Brewing Oxidation is a primary cause of spoilage in beverages like beer, wine, and juices. We provide continuous oxygen monitoring for inert gas blanketing applications, ensuring that head-space gas maintains the necessary purity and pressure to prevent gas breakout and protect the flavor profile from atmospheric degradation.
On-Site Gas Generation (PSA/VPSA) Many food and beverage facilities use PSA or VPSA generators to produce nitrogen or other gases on-site for packaging and blanketing. Continuous, high-accuracy monitoring at the outlet of the generator is essential to verify that the gas purity meets the stringent requirements of the production line before it is used in the packaging or storage process.
Gas Mixing & Blending Systems Precise gas mixtures are often required for specific MAP applications, such as adjusting oxygen levels for red meat color preservation or specific fruit ripening control. Our analyzers are used to verify the accuracy of gas mixing skids, ensuring that the final gas blend delivered to the packaging machine consistently matches the target specifications.
Storage & Facility Safety In environments where inert gases like nitrogen or carbon dioxide are used extensively for blanketing and storage, safety is paramount. We support the integration of area monitoring solutions that track oxygen levels in confined spaces, storage areas, and production rooms to prevent asphyxiation risks and ensure compliance with workplace safety standards.
In food and beverage manufacturing, atmospheric control is a fundamental process parameter. Uncontrolled oxygen contamination or improper gas mixtures lead to significant losses, including:
Inconsistent Quality: Small variations in gas purity directly affect the shelf life, freshness, and chemical properties of your end products.
Safety Risks: In environments using nitrogen or carbon dioxide for blanketing, improper monitoring can lead to dangerous oxygen-deficient zones, posing a severe risk to personnel.
Our analyzers provide the real-time feedback required to detect process upsets before they become failures, ensuring your production line remains productive and safe.
The OMD-150 provides continuous online oxygen monitoring to verify that nitrogen generated by PSA and VPSA systems consistently meets the purity requirements for modified atmosphere packaging (MAP), inert gas blanketing, and other critical food processing applications.
The OMD-640 portable trace oxygen analyzer is ideal for spot-checking oxygen levels in CO₂ blanketing and inert gas environments. Designed for commissioning, routine quality assurance, and maintenance troubleshooting, it features onboard USB data logging with Excel-compatible (.csv) file export for easy documentation, reporting, and process validation.
A rugged, Online CO₂ analyzer designed for fast, reliable continuous monitoring on modified atmosphere packaging (MAP) lines. Ideal for verifying package headspace carbon dioxide concentrations, confirming gas flushing performance, and supporting routine quality assurance to help maximize shelf life and maintain consistent product quality.
The OMD-21 is an economical, portable percent oxygen analyzer ideal for routine spot-checks throughout food and beverage production facilities. It provides fast, accurate oxygen measurements for verifying gas flushing, monitoring inert gas blanketing, confirming nitrogen generator performance, and supporting quality assurance across modified atmosphere packaging (MAP) and general food processing applications.
Modified Atmosphere Packaging (MAP) & Fresh Produce
In MAP applications, the internal packaging atmosphere is the most critical quality parameter. Precise oxygen control directly dictates the shelf life of fresh produce, the prevention of spoilage, and the maintenance of product freshness. Whether you are excluding oxygen to prevent oxidation or maintaining specific levels to inhibit microbial growth and prevent discoloration in products like red meat, accurate, continuous oxygen measurement is essential to ensure consistent product quality and meet consumer safety standards. Our trace oxygen analyzers provide the sensitivity and rapid response times needed to monitor packaging atmosphere conditions in real time, detect gas flushing fluctuations, and confirm that the atmosphere meets quality specifications throughout the production cycle.
Beverage Processing & Inert Gas Blanketing
Inert gas blanketing (using CO₂ or Nitrogen) is a standard industrial practice in brewing and beverage production to prevent the oxidation of liquids and maintain flavor integrity. The effectiveness of this protective blanket depends entirely on keeping oxygen levels below the threshold required to prevent spoilage and keeping pressure high enough to prevent gas breakout, which renders beverages flat. Continuous online monitoring at critical process points provides real-time confirmation that the inert blanket is maintained. It alerts operators immediately if oxygen levels rise above the setpoint due to supply interruptions or process changes, ensuring that product quality remains high and consistent.
On-Site Gas Generation & Feed Verification
Food and beverage facilities utilizing on-site PSA/VPSA nitrogen generation require ultra-high purity atmospheres to ensure process safety and product consistency. Oxygen contamination in process gas feeds can lead to batch degradation and spoilage. Point-of-use oxygen monitoring at the gas feed inlet provides the earliest possible detection of gas purity degradation. This allows operators to identify issues before contaminated gases reach the packaging or bottling lines, effectively protecting the batch integrity and preventing process upsets.
General Industrial Installation Considerations
Sample system design is vital in food and beverage applications, where gases may be at varying pressures or used in specialized environments. All sample system wetted materials—tubing, fittings, and valves—must be specified for industrial service to minimize leaks and outgassing. For high-pressure supply lines, appropriate pressure reduction must be installed upstream of the analyzer to ensure accurate, repeatable measurements within the specified flow range. Southland Sensing provides expert application support to assist with sample system design, material selection, and installation guidance tailored to your facility’s unique gas composition, pressure, and flow requirements.
Bitte beachten Sie unsere Leitfaden zur Kompatibilität von Lambdasonden to confirm the correct sensor for your specific analyzer model and food or beverage application.
Unsere Applikationsingenieure unterstützen bei der Sensorauswahl, der Installation und bei Fragen zum Explosionsschutz.
Unsere Applikationsingenieure stehen Ihnen bei der Sensorauswahl, der Installationsberatung sowie für alle weiteren Fragen zur Verfügung.
English English 
German
Chinese
Spanish
Japanese
Russian
Portuguese
French
Vietnamese
Korean
Turkish
Italian
Arabic
Ukrainian
