Costco steaks are chained, customers can scan the code with their mobile phones

Recently, at Costco stores in Minhang, Shanghai, customers can use their mobile phones to scan the QR code on the packaging to trace back the steak information. At present, Costco's inventory of traceable product categories has reached 176, covering 27 suppliers. Among them, beef has covered 17 categories, fish has 3 categories, and milk powder has 12 specifications. It is reported that the data of Costco related products in the supply chain are transmitted to the blockchain, while ensuring the authenticity of the information, it also saves traceability costs.