1, yuba is a bean product, which is made by grinding, boiling, solidifying and drying soybeans. It is made by picking the skin from the pot, straightening it, rolling it into a stick and drying it in the sun. Yuba is light wheat yellow in color, shiny, uniform in honeycomb, easy to break, neat in appearance and good in quality. Yuba is a high-grade food in bean products with high nutritional value, so it is widely called "meat in vegetarian diet".

2. Bean skin is one of the nicknames of bean curd skin, which is made from soybean meal through a series of processing procedures. Soybean gluten has a long appearance and tough texture, and is often used for cooking and making snacks. Yuba is a kind of food made by boiling soybean milk, keeping the temperature for a period of time, forming a film on the surface, picking it out and hanging it on branches, and then drying it in the sun. Yuba is rich in protein, which has high nutritional value. It also contains lecithin, which can remove cholesterol attached to blood vessel walls, prevent vascular sclerosis, prevent cardiovascular diseases and protect the heart. In addition, yuba is also rich in minerals such as calcium, iron and zinc and various vitamins.