0 1 The supply of temporary food mainly includes: 1. Large supermarkets (domestic) have not sold food with a shelf life of more than one third, and basically large supermarkets will take it off the shelves. Imported food will be taken off the shelves by large businesses until the shelf life is over half. 2. E-commerce platform returns. 3. Check the warehouse, find the source of goods, make an appointment for the source of goods, etc. 4. Food that really enters the shelf life in the hands of dealers. 5. The main source of the temporary grain supplied by the customs is the goods returned by a large number of market sellers and super wholesale customers when some dealers complete the company's monthly sales tasks. Although these goods can be sold in most days of return, in order not to affect the brand and promote the normal sales in the market, the dealer will ask the company for some policy subsidies for secondary sales through the account manager after taking back these goods. In order not to affect the market, most secondary sales dealers choose special channel customers, such as schools above high school, university supermarkets, Internet cafes, dance halls, factory supermarkets, canteens, site supermarkets, food markets, chain restaurants and so on. This is the main source, as well as some special sources, such as dealer closure and supply chain closure. China's temporary grain warehouses are mainly distributed in port cities, such as Tianjin, Shanghai, Qingdao, etc. Temporary grain companies have also been established in these areas, which have the advantages of being located around the warehouses, convenient to purchase goods, timely communicating with the warehouses and providing after-sales service. In other areas, the layout of temporary food business has some disadvantages, such as difficulty in purchasing goods, difficulty in warehouse inspection, low communication efficiency, high proportion of logistics costs, large time consumption, and difficulty in store operation. In the purchase cost of inland provinces, the logistics cost accounts for 5%- 10% of the cost, which is transmitted to the product end, resulting in the price advantage of temporary food is not obvious compared with regular-priced products, and its competitiveness is affected.