Sangzhi salt dried bean curd is a famous local specialty. During the Xianfeng reign in Qing Dynasty, the salt dried bean curd made in Sangzhi County was a best seller in Changsha, Wuhan, Guangzhou and other places, and gained a reputation in Hunan Province. It was once listed as a tribute and achieved instant fame in Beijing, the ancient capital.
It has been proved by modern scientific analysis that its nutritional value is not lower than that of milk, and it has the efficacy in clearing away heat, moistening dryness, promoting production of body fluid, detoxicating, strengthening the middle warmer, relieving anxiety and reducing turbidity. Therefore, people who like to eat salt dried bean curd usually have tender and delicate skin, seldom have acne, and have normal gastrointestinal functions. Thus it can also be seen as one of the best beauty products.