GB 11678-1989 "Hygienic Standard for Polytetrafluoroethylene Coatings on the Inner Wall of Food Containers" stipulates the hygiene requirements for polytetrafluoroethylene (PTFE) coatings when used on the inner wall of food containers to ensure that they do not produce harmful substances when they come into contact with food and ensure food safety. The standard details the composition, processing technology, performance requirements of polytetrafluoroethylene coatings and their key indicators such as non-toxicity, chemical Stability, high temperature resistance, etc. In addition, the standard also stipulates the impact assessment of coatings on food safety during production and use to ensure that they do not contaminate food. By complying with this standard, food container manufacturers can ensure that their products meet food safety and hygiene requirements and improve the safety and Reliability of food containers.