Article 54 of the Food Safety Law of People's Republic of China (PRC): Food business operators shall store food according to the requirements of ensuring food safety, regularly check the stored food, and promptly clean up the food that has deteriorated or exceeded its shelf life. When storing bulk food, food business operators shall indicate the name, production date, shelf life, producer name and contact information of the food at the storage place.
Food safety means that food is non-toxic and harmless, meets the nutritional requirements, and will not cause any acute, subacute or chronic harm to human health. Food safety is also an interdisciplinary field, focusing on how to ensure food hygiene and food safety, reduce hidden dangers of diseases and prevent food poisoning in the process of food processing, storage and sales. Eliminating or reducing the risk to consumers' life and health through food safety measures is the core of food safety. Food safety is a topic of concern to everyone. While paying attention to the food itself, we should also pay attention to some safety signs. QS is the abbreviation of English quality and safety. Enterprises that have obtained the food quality and safety production license must mark the food quality and safety production license number uniformly formulated by the state on the food packaging of the smallest sales unit, and affix the food quality and safety market access mark "QS" before leaving the factory for sale. The style and usage of food quality and safety market access signs are uniformly formulated by the General Administration of Quality Supervision, Inspection and Quarantine, and consist of Chinese characters "QS" and "quality and safety". The main color of the logo is blue, the four Chinese characters "Q" and "Quality and Safety" are blue, and the letter "S" is white. When in use, it can be enlarged or reduced as needed, but it must not be deformed or discolored. The food labeled "QS" means that the food meets the basic requirements of quality and safety.