French Supermarket giant using Blockchain to trace their milk suppliers – Carrefour with over 12,300 stores in 30 countries has extended the ability for customers to track the provenance of it milk having offered this on previously on its chickens and tomatoes. Customers using their mobile phones will be able to track where Carrefour Quality Line (CQL) micro-filtered full-fat milk has come from. So giving consumers product traceability throughout the supply chain, starting with farmers, what the cows have been feed through to the shelves of the shop.

CQL enables consumers to know the GPS coordinates of farmers whose animals were milked. Furthermore,...