Certified Dietary Manager (CDM) 2025 – 400 Free Practice Questions to Pass the Exam

Modified Atmosphere Packaging (MAP) is specifically designed to extend the life of food products by changing and maintaining a controlled atmosphere around the food. This is typically achieved by replacing the air inside the package with gases like nitrogen, carbon dioxide, or a mixture of gases that create a reduced oxygen environment. Lower levels of oxygen slow down the growth of aerobic bacteria and mold, thereby prolonging freshness and shelf life without the need for chemical preservatives. This method helps in maintaining the quality, color, texture, and nutritional value of perishable items, making it particularly effective for meats, fruits, vegetables, and ready-to-eat meals.

The other options don't accurately represent the function of MAP. While enhancing flavor may be a secondary benefit, it's not the primary function of the packaging. Reducing weight for shipping is not a characteristic of MAP, as it is focused more on the atmosphere within the packaging rather than its physical weight. Additionally, while chemical preservatives serve to increase shelf life, MAP provides a chemical-free alternative by modifying the atmospheric conditions rather than relying on added substances.