When purchasing food, a food business operator shall check the supplier's license and product qualification certificate.

according to article 51 of the food safety law of the people's Republic of China, when purchasing food raw materials, food additives and food-related products, food producers should check the supplier's license and product qualification certificate; Food raw materials that cannot provide qualified certificates shall be inspected in accordance with food safety standards; Food raw materials, food additives and food-related products that do not meet food safety standards shall not be purchased or used.

a food production enterprise shall establish an incoming inspection record system for food raw materials, food additives and food-related products, truthfully record the names, specifications, quantities, production dates or production batch numbers, shelf life, purchase dates, supplier names, addresses and contact information of the food raw materials, food additives and food-related products, and keep relevant vouchers. The storage period of records and vouchers shall not be less than six months after the expiration of the product shelf life; If there is no clear shelf life, the shelf life shall not be less than two years.

Extended information:

Article 55 of the Food Safety Law of the People's Republic of China, catering service providers shall formulate and implement requirements for raw material control, and shall not purchase food raw materials that do not meet food safety standards. Advocate catering service providers to open the processing process and publicize information such as food raw materials and their sources. Catering service providers shall inspect the food and raw materials to be processed in the process of processing, and shall not process or use them if it is found that there are circumstances stipulated in Item 6 of Article 34 of this Law.

article 56 catering service providers shall regularly maintain facilities and equipment such as food processing, storage and display; Regularly clean and check thermal insulation facilities and cold storage and freezing facilities.

catering service providers shall clean and disinfect tableware and drinking utensils as required, and shall not use tableware and drinking utensils that have not been cleaned and disinfected; Where a catering service provider entrusts the cleaning and disinfection of tableware and drinking utensils, it shall entrust a centralized disinfection service unit for tableware and drinking utensils that meets the conditions stipulated in this Law.

Baidu Encyclopedia-Food Safety Law of the People's Republic of China