Problems: Food products demand a high degree of safety. The importance of managing a wide variety of information, such as the date and place of production, the best-before date, and the destination direction is greater than ever and has made quality control of foodstuffs very difficult. Food products cartons are cleaned with alcohol, detergent, warm water, or steam and so machines that have a low resistance to chemicals or high temperatures, or that may allow bacteria to proliferate cannot be used. Mount Data Carriers (ID Tags) housed in a double layer of PFA (Fluororesin) to the cartons or pallets, and in addition to the product name, weight, and quantity, store information regarding the data and place of production, the best-before date, and the destination direction in the Data Carriers. Perform sorting and delivery work after confirming safety using the production date and best-before date information obtained from the Data Carriers and issue a form itemizing the relevant information.