When buying dried apples and other dried fruit products, try not to buy bulk products, and try to buy stereotyped packaging products. When purchasing, pay attention to whether the product name, place of origin, factory name, production date, batch number or code number, specifications, shelf life, eating method, etc. are marked on the package as required. Try to choose products from well-known companies with larger scale, better product quality and better service quality. In addition, after opening the package, smell for a pungent peculiar smell after opening the package. If so, it may be a product with a high residual amount of sulfur dioxide. The product can be fully soaked in clean water to reduce the harm to the human body when eating