Modified Atmosphere Packaging (MAP) is a method in which the air inside a package is replaced with a carefully controlled gas mixture. The goal is to extend the shelf life of food, preserve freshness, and inhibit microbial growth—without the use of chemical preservatives.

Depending on the product’s requirements, gases such as carbon dioxide (CO₂), oxygen (O₂), and nitrogen (N₂) are used in different combinations. For example, CO₂ helps suppress the growth of bacteria and mould, while nitrogen acts as an inert “protective” gas that reduces oxidation.

Benefits of MAP:

• Extended shelf life of food products
• Preservation of flavour, colour, and nutritional value
• Reduced need for additives
• Improved product safety

Typical applications:

• Meat and processed meat products (longer freshness and maintained red colour)
• Bakery products and cheese
• Fruit and vegetables (slowing the ripening process)
• Ready meals and convenience foods

Standards and quality requirements:

• Compliance with HACCP and GMP
• EU Regulation (EC) No 1935/2004 on materials and articles intended to come into contact with food
• Specific hygiene and safety requirements for gas mixtures