Officials in Yuzhong County, Gansu Report Investigation and Punishment of 6 Vendors Illegally Using the Food Additive Malachite Green to Dye Lettuce

On September 5, 2026, multiple departments in Yuzhong County, Gansu issued a joint report on the results of the investigation into online claims that lettuce was being dyed, confirming that 6 vendors in the county had illegally used the food additive malachite green (guolv) to dye lettuce during purchasing, and that cases had been filed for investigation and punishment across the board.