1, raw materials: such as meat, vegetables, seasonings, etc., which are the basis for the catering company to make dishes.

2, semi-finished products: some food that needs to be prepared in advance, such as dough, half-cooked food.

3. Finished products: i.e., dishes that are finally served to consumers.

4, packaging materials: such as cartons, plastic bags, etc., used for packing takeout or storing food.

When writing a dissertation, you can analyze the importance of inventory management and how to carry out effective inventory management by looking at the purchasing, storage, use and sale of inventory.