Prepackaged foods: refers to food prepackaged or made of packaging materials and containers. Include a predetermined amount of packaging and a predetermined amount of food made in package materials and containers and having uniform quality or volume label within a certain limit. In the industrial and commercial examination and approval, the original packaged food is now revised as: prepackaged foods. Food that can be directly provided to consumers or directly used for catering services.

Stereotyped packaged food: refers to packaged food that constitutes a retail unit according to a certain amount and a certain trademark.

Canned food: Canning is a way to store food. Food is first treated at high temperature, and then put into a tin can for vacuum treatment. Food packaged in this way is called canned food.

Canned food belongs to prepackaged foods by definition, and the range of stereotyped packaged food is larger than that of prepackaged foods. For example, there are several different products in the gift box, and the single small package inside belongs to prepackaged foods, but the whole gift box belongs to the stereotyped packaged food.