Local resident Yi Yinjie adds spices to "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. (Xinhua/Song Wen)