Food hygiene is a comprehensive measure taken to prevent food contamination and harmful factors from endangering human health. Food hygiene measures refer to all measures taken to ensure the safety, benefit, and integrity of food at all stages of cultivation, production, and manufacturing, until it is ingested by humans. In order to ensure food safety and hygiene, a corresponding level of clean workshop must be established in the food manufacturing industry. The food purification workshop beverage aseptic workshop is required to meet the standard of 100,000 level purification workshop and can be isolated from the outside world, and the size of the workshop is determined according to the needs, generally composed of changing rooms, buffer rooms, air shower rooms and operation rooms.