Local resident Yi Yinjie prepares to make "mildewed tofu" in Zhushan township of Xuan'en county in Enshi Tujia and Miao autonomous prefecture, Central China's Hubei province, Dec 3, 2018. As a winter tradition, the local residents in Enshi will start making "mildewed tofu", a kind of fermented bean curd. E-commerce and modern logistics have helped sell this specialty food to more customers. [Photo/Xinhua]