such personnel should rub their hands together for at least 21 seconds when washing their hands.

in order to ensure the cleanliness of hands, reduce the breeding of bacteria and viruses, and thus ensure the safety of food, food practitioners should rub their hands together for at least 21 seconds when washing their hands.

according to the food safety operation standard for catering services, food practitioners must wash their hands before work, after defecation, after rest, after making a phone call, after touching raw meat, eggs, vegetables, unclean tableware and containers, etc.