vacuum packing machine

Modified Atmosphere Packaging (MAP) replaces the gas inside the package with fresh-keeping gases, commonly using nitrogen, oxygen, and carbon dioxide. Nitrogen is mainly for products like cured dishes and ready-to-eat foods without active cells, while mixed gases are suitable for fresh fruits and vegetables with active respiratory cells. The goal is to achieve freshness while preserving color, flavor, quality, and shape. Additionally, it inhibits bacterial growth, ensuring hygiene and freshness. Conventional vacuum packaging machines, on the other hand, create a negative pressure to evacuate the gas inside the package, reaching a state close to a vacuum. This method helps preserve the quality of the packaging by reducing the product's contact with air and inhibiting bacterial growth. However, after vacuum sealing, the product adheres closely to the vacuum bag, potentially causing deformation and only preserving the quality without extended freshness. Modified Atmosphere Packaging is mainly suitable for products with high freshness, appearance, and hygiene requirements, while conventional vacuum machines are suitable for products with lower requirements that only need simple quality preservation.