Legal analysis: canteens can be opened in schools, and canteens can only be opened after obtaining health permits. Canteen employees must hold valid health certificates. The canteen must be purchased from a manufacturer or seller with a business license and a hygiene license. If it does not meet the above conditions, it is illegal to open a canteen in school. When buying food, you must purchase it at a fixed point and make a record of the acceptance of the food in storage.

Legal basis: Article 45 of People's Republic of China (PRC) Food Safety Law stipulates that food producers and business operators shall establish and implement a health management system for employees. Persons suffering from diseases that hinder food safety as stipulated by the administrative department of health of the State Council shall not engage in direct contact with imported food. Food production and marketing personnel engaged in direct contact with imported food shall undergo annual health examination and obtain health certificates before taking up their posts.