"Cabbage price" and "hoarding by catty"... Recently, in some e-commerce platforms, various "leftover food" such as ham head and bread edge are very popular. These "leftover food", which is made of fragmentary materials generated during food processing, cannot be sold as normal products due to their irregular appearance, and the price is lower. The materials and quality are the same as those of normal products, which makes many consumers love it. However, some consumers reported that the "leftover food" sold by some businesses had various problems, such as high quality and price, shoddy food as good food, and food safety regulations were not met. It is understood that some bakeries and food factories often collect "corners" in the processing process and sell them at a low price. In this regard, one practitioner said: "Like toast bread edge, the appearance is not very neat, and the taste is also a little hard, but some consumers think the taste is good. We cut it down and sell it cheaper, so that customers can get substantial benefits, and we also avoid waste." On the e-commerce platform, the categories of "leftover food" are more abundant: dried meat slices, dried beef edges, chopped pecan kernels There are many good and cheap products. However, compared with offline stores, online purchase of "leftover food" has more variables. The price of some "leftover food" is not much different from that of normal products, but the merchants, who highlight the characteristics of large quantity and affordable in the propaganda language, are cheating on the price. The reporter found that the price of a biscuit chip was 16 yuan per kilogram, while the normal product was 18 yuan. A buyer commented: "When you buy meat products, you must carefully compare them. Don't be misled by the merchants. The difference between the leftovers and the authentic products is two yuan. Why not buy the authentic products?" The reporter also found that the leftovers of some meat products are even more expensive than the normal products, leaving consumers puzzled. "Some consumers, especially some young people, buy 'leftover food' not necessarily to save money, but to pursue a fresh consumption experience, and not necessarily to seriously compare prices. Some businesses seize this point and highlight the description of 'large quantity and substantial benefits' in the product introduction, just to attract traffic and manufacture sales." Zheng Tong, a reader in Zaoyang City, Hubei Province, said in the letter. Some businesses sell "three no products" and defective products under the banner of "leftover food". The reader Mr. Song once bought a "tiger skin cake edge" on a platform. He said that tiger skin cakes usually have clear lines and strong egg flavor. "This product that can be obtained tastes like an ordinary cake, like a mixture of ordinary cake edges and tiger skin cake edges. Mr. Song said: "'leftover food' just has an irregular appearance, but its taste and quality should be the same as those of authentic products. Some businesses deliberately put the 'leftover food' brand on the food that does not pass the quality standard, deceiving consumers." The reporter bought several pieces of "leftover food" and found that some products were poorly packaged, even without the necessary information such as production address and production date. For example, a certain mango dry leftover product is only packed in a transparent plastic bag, without even a trademark, but only marked with a piece of white paper