On September 24, Walmart released a letter to their leafy greens suppliers requiring end-to-end traceability back to farm by September 30, 2019. This mandate is in response to multiple high-profile recalls and outbreaks associated with these types of products. To help their suppliers meet Walmart’s traceability goal, the letter refers suppliers to the IBM Food Trust network, a blockchain solution pioneered through a partnership between Walmart and IBM to improve food safety.
