
Workers prepare raw materials for vinegar making at a vinegar factory in Chishui, southwest China's Guizhou Province, Oct. 28, 2022. Photo: Xinhua

A worker prepare raw materials for vinegar making at a vinegar factory in Chishui, southwest China's Guizhou Province, Oct. 28, 2022. Photo: Xinhua

A worker checks the maturity of vinegar in process at a vinegar factory in Chishui, southwest China's Guizhou Province, Oct. 28, 2022. Photo: Xinhua

This aerial photo taken on Oct. 28, 2022 shows workers operating at the sunning field of a vinegar factory in Chishui, southwest China's Guizhou Province. Photo: Xinhua

This aerial photo taken on Oct. 28, 2022 shows workers operating at the sunning field of a vinegar factory in Chishui, southwest China's Guizhou Province. Photo: Xinhua

A worker moves bottled vinegar at a vinegar factory in Chishui, southwest China's Guizhou Province, Oct. 28, 2022. Photo: Xinhua

Workers move raw materials at the sunning field of a vinegar factory in Chishui, southwest China's Guizhou Province, Oct. 28, 2022. Photo: Xinhua

A worker displays mature vinegar at a vinegar factory in Chishui, southwest China's Guizhou Province, Oct. 28, 2022. Photo: Xinhua

Two women promote vinegar products via livestreaming at a vinegar factory in Chishui, southwest China's Guizhou Province, Oct. 28, 2022. Photo: Xinhua