Method of measuring and calculating freshness of products in mode of one object having one code

The invention provides a method of measuring and calculating freshness of products in a mode of one object having one code. The method of measuring and calculating freshness of products in a mode of one object having one code is characterized in that products to be measured are configured with codes through an enterprise, thus realizing one object having one code; every product package is internally configured with a unique QR code which includes the information of a product, such as the date of manufacture; when leaving factory, the QR code is activated, and when a customer purchases the product and opens the product, the customer uses WeChat to scan the internal QR code of the package, and then the background can obtain the freshness of the product = the scanning date of the customer - the date of manufacture, and the freshness unit is a time unit and the time unit includes week, day, hour and the like; and then the overall freshness of the batch of products can be obtained through calculation of the freshn