Walmart intends to begin selling leafy greens within a year, information about which will be recorded in the blockchain, the company said in a press release.
World largest in terms of revenue and number of employees retailer reported that it notified leafy greens suppliers about the need to integrate a tracking system on a blockchain system developed jointly with IBM by September 2019.
According to the letter sent to the suppliers, any company supplying Walmart with leaf greens must work on the IBM Food Trust network to ensure end-to-end traceability of its products. The blockchain platform will allow to establish the origin of such products quickly, while in the current conditions this "task is practically irresolvable".
Earlier experts of the Center for Disease Control warned citizens about the danger of eating a salad grown near the town of Yuma, Arizona. Walnart's vice president of food safety Frank Yiannas said that now customers can hardly determine where the products they offered were manufactured.
But it was difficult for consumers to know how to determine where their lettuce was grown. None of the bags of salad had ‘Yuma, Arizona’ on them. In the future, using the technology we’re requiring, a customer could potentially scan a bag of salad and know with certainty where it came from.
VP of Food Safety, Walmart
The first phase of the program involves ensuring "one-step traceability" by direct suppliers by the end of January. Other companies that perform the role of intermediaries should implement the system integration until the end of September next year across the vertical.