Dry tofu is a specialty of the Northeast, also known as "Northeast dry tofu", also known as (soybean skin) is a kind of pressed into thin slices of tofu products. It is different from the southern production of bean curd skin, the thousand sheets of children, but also different from the bamboo and dried tofu (Northeast dry tofu is thinner than the thousand sheets, raw and cooked can be eaten).

Tofu skin is a traditional Chinese soybean product made from beans. It is famous as a variety of dishes in the southern and northern regions of China. Tofu skin is flat and sweet in nature, and has the effect of clearing heat and moistening the lungs, relieving cough and eliminating phlegm, nourishing the stomach, detoxifying the body and stopping sweating. Tofu skin is rich in nutrients, protein, amino acid content, according to modern scientific determination, there are iron, calcium, molybdenum and other essential 18 kinds of trace elements.