Modified atmosphere packaging is a technique that uses gas flushing to reduce oxidation, which can cause discoloration, off-flavors, and spoilage. The film is also designed to keep out ambient gases and moisture, which double up its preservation efforts. The process is a great way to protect fresh produce from spoilage, and FDA reports that MAP is being used more for fresh produce.
The main benefits of modified atmosphere packaging are enhanced shelf-life and lower cost. These benefits are mainly attributed to the use of nitrogen, carbon dioxide, and pure oxygen. The nature of the food product is an important determinant in the design of the packaging. Multi-component foods are more difficult to protect, as they have multiple ingredients and types. Other design criteria include the rate of water vapor transmission, permeability of the packaging, and the type of seal used to seal the package.
The main benefit of MAP is the extended shelf life of the food. The extended shelf life of the food is a major selling point for retailers. It can also increase the sale of fresh foods for consumers. By adding a one-way valve to packaging, MAP can help extend the life of food. Additionally, the increased shelf-life can allow for more efficient palletization and stacking of products.