What about food labels?

Below we explain the definitions of several food terms:

Pre-packaged food: Foods that are pre-packaged or made in packaging materials and containers, including pre-packaged foods and foods that are pre-made in packaging materials and containers and have uniform quality or volume labels within a certain amount limit. This is basically packed in various plastic packaging or canned food.
Food labels: words, graphics, symbols and all descriptions on food packaging.
Ingredient: Any substance, including food additives, used in the manufacture or processing of food and present (including in modified form) in the product.
Production date: The date on which the food becomes the final product, also including the packaging or canning date, that is, the date on which the food is packed (filled) into packages and containers to form the final sales unit.
Shelf life: The period during which prepackaged food can maintain its quality under the storage conditions indicated on the label. During this period, the product is fully fit for sale and retains its characteristic qualities which need not be stated or have been stated on the label. If it is not stored as required, the actual storage period may not be as long as the shelf life target, for example, you put the refrigerated items at room temperature. Also, if the food bag is obviously swollen and cannot be eaten even within the shelf life, it must have deteriorated.
Specification: When the same prepackage contains multiple pieces of prepackaged food, the expression of the relationship between the net content and the number of pieces contained. For example, if there are 30 small packages in a large package, and you buy it back and find only 29 small packages, then this is an unqualified product, or a bag of rice is marked as 5kg, but you find only 4.5kg when you go home. This is also a substandard product, you can ask the merchant to compensate and refund.
Main display layout: the layout that is easily observed on the prepackaged food packaging or packaging container.