Modified Atmosphere Packaging (MAP) and Controlled Atmosphere Storage (CAS) are essential techniques for prolonging food freshness by controlling the surrounding air. Both create a type of  “space suit” for food, carefully managing oxygen, carbon dioxide, and nitrogen levels to prevent spoilage and maintain quality. 

MAP involves a one-time gas replacement within individual sealed packages, ideal for smaller quantities like meats. CAS, conversely, utilises large, sealed rooms with continuous, precise gas adjustments, temperature, and humidity control, best suited for bulk storage of produce. 

These methods significantly increase shelf life, enhance food quality by preventing discolouration and dryness, and reduce food waste. Crucially, gas sensors, like our Guardian NG, are vital for monitoring and maintaining the optimal gas composition. They detect levels of O2, CO2, and N2, trigger adjustments as needed, and ultimately prevent spoilage, ensuring food remains fresh and maximizing profitability. 

Click here to download our MAP and CAS flyer and learn more.