| Why Walmart Says Blockchain Can Improve Food Safety Walmart, keen on putting transparency and trust back into the worldâs food system, has turned to blockchain and will require suppliers to use it to provide a transparent view into food product origins, all the way back to the farm. Karen Webster talks with Frank Yiannas, Walmartâs vice president of food safety, about the ideaâs genesis, why leafy greens are the initial blockchain use cases and what this all means for brands at the grocery store. |
