High-temperature cooking bag is a composite plastic film bag can be heat-treated, it has plastic containers and cans of both boiling water resistant advantages. Food can in the bag intact, high temperature (usually in 120 ~ 135 ℃) sterilization heating, remove and serve. After ten years of use it proved that it is an ideal sales packaging containers. For meat, soy products packaging, convenient, hygienic and practical, and can be good to keep the original flavor of the food, the more consumers. Excessive packaging, pollution may increase. Now the food, as long as it can be sent out as gifts, is bound in a complex with attractive packaging, generous layer after layer of packaging materials of various materials. This will not only directly affect the price of goods, there may be a serious harm to human health. For example, the use of PVC material made of moon cake tray to contain large amounts of toxic and hazardous substances. Moon cake contains more fat, these toxic and hazardous substances dissolved in the oil will be migrated to the moon cake, it will cause harm to human health.