If it is an ordinary packaging bag, it is toxic to cook and eat.
Plastic bags will decompose at high temperature, and plasticizers, PVC and other substances will do great harm to human body. There are unpolymerized vinyl chloride monomers in PVC resin produced by high-temperature cooking plastic bags, which are toxic compounds to human body. In addition, in the process of processing PVC resin into plastic bags, some auxiliary materials, such as plasticizers, stabilizers, pigments, etc. Some auxiliary materials are toxic and will seep out during high temperature cooking. In addition, plastic itself will release harmful gases and endanger people's health.