Packaging methods and equipment

6. Modified atmosphere packaging (MAP)

Modified atmosphere packaging (MAP) is the addition of a gas, typically nitrogen (N₂) mixed with carbon dioxide (CO₂), into seal-packaged food products to extend the shelf life and to preserve the freshness of fresh-cut processed fruits and vegetables, nonfrozen chilled meats/fish/poultry, ready-to-eat meals, and semiprocessed bulk foods by controlling their microbial activity and oxidation of the product. If the storage temperature is adequsate, MAP packaged fresh foods do not require the addition of chemical preservatives or stabilizers. The high cost of gas packaging machinery and need for staff training limits the use of MAP for small-scale production.

Watch a video on MAP e