As a famous local specialty, salty dried tofu in Sangzhi county enjoyed a good market in Changsha, Wuhan and Guangzhou during the reign of Emperor Xianfeng in Qing Dynasty, winning good reputation in these areas.
It had been classified as a tribute and gained popularity in Beijing. It has been proved that the dried tofu has nutritional value as high as milk and boasts the functions of clearing heat, moisturizing dryness, regenerating body fluid, detoxicating, reinforcing vitality and descending turbidity.
