dado made of light-colored, durable and easy-to-clean materials should be laid on the top of the wall.

the walls of food processing areas should be made of light-colored materials that are nontoxic, odorless, impervious, smooth and difficult to scale. The corners and column angles (between walls, between walls and columns and the ground, between walls and columns and the ceiling) should have a certain curvature (the radius of curvature is above 3cm) to prevent fouling and facilitate cleaning.

In places that need frequent washing, such as processing, cutting, tableware cleaning and disinfection, cooking, etc., and places that are prone to moisture, there should be a wall skirt made of smooth, non-absorbent, light-colored, durable and easy-to-clean materials (such as ceramic tiles, alloy materials, etc.) of more than 1.5m, and all kinds of special rooms should be laid on the top of the wall.

Extended information:

The relevant requirements for the setting of the canteen stipulate that:

1. The tap should be a non-manual switch such as pedal, elbow or induction, or a switch that can be automatically turned off, and warm water should be provided. Dining places should be equipped with a sufficient number of special hand washing facilities for diners, and their settings should meet the requirements of the second to fourth items of this item.

2. The food processing area should be well ventilated, and damp and dirty air should be removed in time. The air flow direction should be from the high clean area to the low clean area to prevent the pollution of food, tableware and processing equipment and facilities.

3. The tableware cleaning and disinfection pool should be dedicated, separated from the food raw materials, cleaning utensils, tools and container cleaning pools that come into contact with indirect food. The water tank should be made of impervious materials such as stainless steel or ceramics, which is not easy to accumulate scale and easy to clean. If chemical disinfection is adopted, there shall be at least 3 special pools. All kinds of pools should be clearly marked to indicate their use.

Baidu Encyclopedia-Hygienic Code for Catering Industry and Group Dining Distribution Units