The list of categories (varieties) of foods (raw materials) prohibited from processing is as follows:

1. Directly imported raw seafood and aquatic products, including jellyfish, kelp, marine shellfish, deep-sea fish, shrimp and crab, and their baked, sauced, pickled and frozen products.

2. Dead turtles, eels, shrimps and crabs shall not be used as raw materials for food processing.

3. Organs, tissues and glands of puffer fish, green-skinned red-fleshed fish, meretrix meretrix, weaver snail, lychee snail, mud snail, dog liver, shark liver, herring gall, thyroid gland of domestic animals and other unknown animals.

4. Food additives such as nitrate and nitrite.

5. Directly imported food or semi-finished products provided by unqualified or unfamiliar suppliers, as well as recycled leftovers.

6. It is forbidden to process and produce high-risk foods such as green beans, fresh day lilies, wild mushrooms, sprouted potatoes, almonds, loquat seeds and cassava in primary and secondary schools and kindergartens; It is not allowed to manufacture and sell high-risk dishes such as cold food, raw food and decorated cakes.