Commonly used food packaging plastic bags are mostly made of polyethylene film, which is non-toxic and can be used to contain food. There is also a film made of polyvinyl chloride. PVC itself is non-toxic, but the additives added according to the purpose of the film are often substances harmful to the human body and have a certain degree of toxicity. Therefore, this type of film and plastic bags made of this film are not suitable for holding food. It can also be used to stick things on for easier operation.

PE food plastic bags have the following characteristics:

1. High temperature resistance: PE food plastic bags can withstand high temperatures and are suitable for microwave heating.
2. Low temperature resistance: PE food plastic bags can maintain strength and toughness at low temperatures and are suitable for packaging frozen food.
3. Waterproof and moisture-proof: PE food plastic bags can effectively protect food from being eroded by
water or moisture.
4. Anti-oxidation: PE food plastic bags can resist the erosion of oxygen and can effectively protect the nutrients of food.