Modified atmosphere is the practice of modifying the composition of the internal atmosphere of a package or room in order to improve shelf life. The modification process often tries to lower the amount of oxygen to zero percent, in order to slow down the growth of aerobic organisms and the speed of oxidation reactions. The removed oxygen can be replaced with nitrogen, commonly acknowledged as an inert gas or carbon dioxide, which can lower the pH or inhibit the growth of bacteria. Controlled atmosphere storage was used from the 1930s when ships transporting fruits had high levels of CO2 in their holding rooms, increasing the shelf life of the product. In the 1970s, modified atmosphere packages reached the stores with bacon and fish were sold in retail packs in Mexico. Since then development has been continuous and interest in modified atmosphere packaging has grown due to consumer demand. This has led to advances and new techniques have been designed, such as the use of anti-fogging layer to improve product visibility.

Modified atmosphere packaging is a technique used for prolonging the shelf-life of fresh or minimally processed foods. In this preservation technique, the air surrounding the food in the package is changed to another composition. It is the shelf-life of perishable products like meat, fish, fruits and vegetables that will be prolonged since it slows the natural deterioration of the product. Modified atmosphere packaging is used with various types of products. The mixture of gases in the package depends on the type of product, packaging materials and storage temperature. Our air sanitation systems are compatible with modified atmospheres keeping your food and consumers safe from contaminants. Call our experts today for installation and keep the air clean in your refrigeration unit 24 hours a day.