The science knowledge of grocery bag
Generally made of PE polyethylene PP polypropylene, food packaging bags. Synthetic resins are almost always used in plastics. Resin is the most important component in plastics, which acts as an adhesive and can bond other components of the plastic into a whole. Although adding various additives can change the properties of plastics, resin is the fundamental factor that determines the type, performance and use of plastics.
Do not use plastic bags for high-temperature food for a long time: In daily life, people often see people use plastic bags for steaming fried food, such as fried cakes, fried dough sticks, etc., and some people put plastic bags on tableware for customers use. Plastic bags contain hot food directly ingested. When the temperature exceeds 50 ℃, the plastic bags will release toxic gas. Long-term use of such plastic bags will cause dizziness, nausea, vomiting, diarrhea, etc. It can lead to lead poisoning and increase the probability of cancer.