Tofu skin, also known as soybean skin or rotting skin, is a film that solidifies on the surface of boiled soybean milk and can be eaten fresh or dried in the sun, making it a common food ingredient in East Asia.

The term tofu skin first appeared in Li Shizhen's "Compendium of Materia Medica," in which Li said that when soy milk is heated, a film appears on the surface, and the film is removed and dried to obtain tofu skin.

In China, rotting skin is usually dried in the sun before being used as a cooking ingredient. In Japan, in addition to being dried and then soaked, it is also popular to eat freshly made roti, which is called "raw yuba". In addition to being a snack, it can also be eaten as sashimi dipped in soy sauce.

It is also eaten half-dried and wrapped in sushi. In terms of flavor, Chinese roti is savory, but in Japan, it is served as a sweet. The usual roti sushi uses sweet roti. The sushi wrapped in Japan is usually thin fried tofu, not roti.

The main ingredient in vegetarian duck, vegetarian ham, etc., is roti, which, when seasoned with a variety of mushrooms and vegetables and soy sauce and pressed into strips, is a meat imitation.

Examples of Bean Skin Dishes: Meat and Rice Pancake

The Meat and Rice Pancake of Lao Tong City is one of the main foods of Wuhan people's "morning feast", and a very distinctive traditional snack of Wuhan's folklore. It is also a very characteristic traditional snack in Wuhan. It is square and thin, golden and yellow in color, fragrant and intoxicating in taste, and was originally a festive delicacy made by Wuhan people for New Year's festivals, but later became a common breakfast.

In Wuhan, the old Tongcheng's three fresh bean skin has the longest history and is also the most famous. "Lao Tongcheng" is the name of a restaurant, located in Hankou Zhongshan Road, Dazhi intersection, known for the business of three fresh beanskin, known as "King of the breakfirst" reputation. When foreigners came to Wuhan, they would eat the bean skin of Old Tongcheng as fast as they could. Mao Zedong had tasted it several times and praised it.

Lao Tongcheng Doupi method: soybeans, rice mixed pulp, spread in the pot into a thin skin, the inner package of boiled glutinous rice, diced meat, fresh eggs, fresh shrimp and other fillings, fried in oil. The skin is golden and shiny, and the taste is fluffy and tender.

Refer to Baidu Encyclopedia - Doupi; Baidu Encyclopedia - Doupi