I. Advantages: Cling film has a simple structure, low production cost, and is cheap.It is easy to use, can quickly package food, and is easy to carry; it has a good preservation effect on food, can slow down the rate of food spoilage, and extend the storage time; it has certain Sterilization and moisture-proof effect, keeping the flavor, color and nutrients of food from being affected.

II. Disadvantages: Since cling film is mainly made of plastic materials such as polyethylene, it cannot be degraded naturally and will cause certain pollution to the environment after use. When using cling film to package food, you need to pay attention to whether the material is safe. Some unqualified cling film may It will cause food contamination and endanger human health.