What material is the food high-temperature steaming bag made of

High temperature steaming bag is a composite plastic film bag that can undergo heating treatment. It has the advantages of both canned container and boiling water resistant plastic bag. Food can be kept intact in the bag, sterilized and heated at high temperatures (usually 120-135 ℃), and taken out for consumption. After more than ten years of use, it has been proven to be an ideal sales packaging container. Suitable for packaging meat, soy products, and ready to eat seafood products, it is convenient, hygienic, and practical, and can maintain the original flavor of the food well, which is favored by consumers.

In order to meet the performance requirements of the cooking bag, a high-strength polyester film is selected for the outer layer, an aluminum foil with light shielding and airtightness is selected for the middle layer, and a polypropylene film is selected for the inner layer. The three-layer structure includes PET/AL/CPP and PPET/PA/CPP, while the four layer structure includes PET/AL/PA/CPP.