After soaking a catty of dried bean curd, it is regarded as tender tofu or old tofu. Generally speaking, tender tofu can make more, about four or five pounds, while old tofu has less water than tender tofu and can only make two or three pounds of tofu.
Moreover, this kind of dried bean curd is also very cheap in the market. You can buy a catty for five or six dollars, so the profit margin after tofu is quite large. And tofu is basically a delicious food that every household likes to eat. Mapo tofu is also delicious in this way. The key is that the price is very affordable.
Extended data:
Nutritional value of tofu;
1. Tofu is rich in nutrition, containing many trace elements necessary for human body, such as iron, calcium, phosphorus and magnesium, as well as sugar, vegetable oil and rich high-quality protein, and is known as "vegetable meat". The biological value of soybean protein is comparable to that of fish, and it is a leader among plant proteins.
2. Soybean protein belongs to complete protein, and its amino acid composition is good, which contains almost all amino acids necessary for human body. Soybeans can be directly cooked and eaten. The protein digestibility of soybeans is only 65%, while the digestibility of tofu can be increased to 92%~95%.
3. The oil content of soybean used to make tofu is about 18%, and most of it can be transferred to tofu. Soybean oil has a large proportion of linoleic acid and contains no cholesterol, which is beneficial to the growth and development of human nerves, blood vessels and brain.
4. Tofu contains no cholesterol, and is a medicinal food for patients with hypertension, hyperlipidemia, hypercholesterolemia, arteriosclerosis and coronary heart disease.
5. Tofu is rich in phytoestrogens, which has a good effect on the prevention and treatment of osteoporosis.
Baidu Encyclopedia _ Tofu (Food)?