PET plastic can be used to hold food such as rice and beans for a long time. Firstly, pet is non-toxic, and its weather resistance is very good. There is no problem only holding rice and beans.
The common beverage plastic bottles in the market are made of pet, which belongs to safety materials. However, high temperature must be avoided in the storage process. Generally, plastic bottles made of PET materials can withstand a temperature of up to 100 ° C. below 100 ° C is safe for preserved food, which may lead to the release of harmful substances.
Polyethylene terephthalate is pet, with the chemical formula of c10h8o4n. It is prepared by exchanging dimethyl terephthalate with ethylene glycol or esterification of terephthalate with ethylene glycol to synthesize dihydroxyethyl terephthalate first, and then polycondensation.
Food grade PET will not add any other additives except micro catalysts and antioxidants added in the polymerization process. The migration and exudation of additives will not occur during use, so it is safe for the material itself.