This concept is still unclear, but on the other hand, those unpacked bulk foods are definitely not prepackaged foods. Without packaging, we can't see the name, specifications, net content, production date, shelf life, storage conditions and other information about the nature of food. For example, if I give you a peanut, you don't know what the peanut is like until you peel it off. Even if it looks intact, I don't know it's gone bad if I haven't tasted it, but what if there is aflatoxin? So bulk food is not as safe as prepackaged foods. Of course, in the General Principles of Nutrition Labeling in prepackaged foods, it is stipulated that some foods can be exempted from nutrition labeling. The foods exempted from mandatory nutrition labeling are as follows: 1. The nutritional composition of food fluctuates greatly, such as fresh food and ready-made food for sale; 2. The package is too small to meet the contents of the nutrition label, such as prepackaged foods with a total surface area of ≤ 100cm2 or a maximum surface area of ≤20cm2; 3. The consumption is small, which contributes little to the intake of nutrients, such as drinks, wine and packaged drinking water. The daily consumption is ≤ 10g or 10mL. Fresh food: a specified amount of raw meat, fish, vegetables and fruits that are prepackaged, uncooked and without other ingredients, such as bagged fresh (or frozen) shrimp, meat, fish or fish pieces, meat pieces and meat stuffing. In addition, dried products without other ingredients, such as dried mushrooms, fungus, dried fruits and vegetables, fresh eggs, etc., also belong to the scope of fresh food in this standard. However, prepackaged quick-frozen noodle rice products and frozen prepared foods are not exempted, such as quick-frozen jiaozi, steamed stuffed bun, glutinous rice balls and shrimp balls. Read about dried mushrooms, fungi, dried fruits, dried vegetables and fresh eggs. These food manufacturers don't need to be completely labeled. Whether it is fresh or not depends on the consumer's eyesight. Ready-to-eat food: refers to food made and sold on the spot and ready to eat. However, prepackaged foods, where food processing enterprises concentrate on production, processing and distribution to shopping malls, supermarkets, chain stores and retail stores, shall be labeled with nutrition labels according to the standards. Look at this food. The most common foods in supermarkets are baked goods such as bread and cakes. If it is a freshly baked cake, just write the date of production or the date of packaging. However, the content of trans fatty acids is unknown. If you buy a pre-packaged cake, look for one with low trans fatty acid content and not fresh enough. The package is too small to meet the nutrition label, such as prepackaged foods with total surface area ≤ 100cm2 or maximum surface area ≤20cm2; Interpretation in General Provisions: In prepackaged foods, if the total surface area of product packaging is less than or equal to 100cm2 or the maximum surface area is less than or equal to 20cm2, the mandatory labeling of nutritional information is not required, but voluntary labeling of nutritional information is allowed. When such products are voluntarily labeled with nutritional information, the text format can be used, and the label of nutritional reference value (NRV) can be omitted. The total surface area of the package can be calculated when the product is not put into the package, but the size of the sealing edge should be removed. The calculation method of the maximum surface area of packaging is the same as Appendix A of General Rules for Labeling in prepackaged foods (GB7718-2011). Small consumption does not contribute much to the intake of nutrients, such as drinks, wine and packaged drinking water. The daily consumption is ≤ 10g or 10mL. Interpretation in the General Rules: Drinks and alcoholic products with alcohol content greater than or equal to 0.5% include fermented wine and its mixed wine, distilled wine and its mixed wine, and other wines (such as cooking wine). Besides water and alcohol, the above-mentioned alcoholic products basically do not contain any nutritional ingredients, so there is no need for nutritional labels. Packaged drinking water refers to drinking natural mineral water, drinking pure water and other drinking water. These products mainly provide moisture, and basically do not provide nutrients, so they are exempt from mandatory nutrition labels. The characteristic indexes of drinking natural mineral water, such as the total content of metasilicic acid, iodide, selenium, soluble solids and the content range of main cations (K+, Na+, Ca2+, Mg2+), are all marked according to relevant standards, and are not regarded as nutritional information. Prepackaged foods with daily consumption ≤ 10g or 10mL refers to foods with small consumption, little contribution to nutrient intake or single ingredient seasoning, including: 1. Seasoning: monosodium glutamate, vinegar, etc. ; 2. Sweeteners: sugar, starch sugar, pollen, edible sweeteners, flavoring syrup, etc. 3. Seasoning: pepper, aniseed, pepper, spiced powder, etc. 4. A small proportion of edible foods: tea, gum sugar, coffee beans, etc. 5. Others: yeast, edible starch, etc. However, for foods with high single nutrient content and great influence on daily nutrient intake, such as fermented bean curd, pickles (pickles), soy sauce, sauces (yellow sauce, meat sauce, hot sauce, bean paste, etc. ) and compound seasoning, should be labeled with nutritional ingredients. The easiest thing to read here is drinks and alcohol, not drinks and alcohol, but drinks and alcohol. Drinks are absolutely prepackaged foods, especially carbonated drinks, which often make people unconsciously ingest a lot of sugar and salt, so be sure to label the nutritional ingredients.