Soybeans that have not been soaked in water should be cooked for 40 to 50 minutes. Because soybeans that have not been soaked in water are dry, they are generally not easy to cook, so it takes a little longer. It is better to soak them so that the soybeans are still tasty. Soaked soybeans only need 10 minutes of high heat, if it is a large pot does not need 10 minutes. Soybeans should be soaked for at least 3 hours.

The efficacy and role of soybean:

1, enhance the immune

Soybean contains plant protein, has a "plant meat" reputation. If the human body lacks protein, there will be a decline in immunity, easy fatigue symptoms. Eating soybean protein, can avoid eating meat cholesterol rise problem.

2, let the mind smart

Soybean rich in soy lecithin, it is one of the important components of the brain. Eating soybeans helps prevent Alzheimer's disease. In addition, the sterols in soy lecithin help increase nerve function and vitality.

3, strong organs

Soy lecithin can also promote the absorption of fat-soluble vitamins, strong body tissues and organs. In addition, it can reduce cholesterol, improve lipid metabolism, prevention and treatment of coronary atherosclerosis.

4, improve energy

The protein in soybeans can increase the excitatory and inhibitory functions of the cerebral cortex, improve learning and work efficiency, but also help to relieve frustration, depression.

5, whitening skin care

Soybeans are rich in soy isoflavones, a phytoestrogen that improves skin aging, but also relieves menopausal symptoms. In addition, Japanese researchers found that soybeans contain linoleic acid can effectively prevent the synthesis of melanin in skin cells.

6, cancer prevention

Soy contains protease inhibitors, the United States, New York University researchers experiments found that it can inhibit a variety of cancers, the inhibition of breast cancer is the most obvious effect.

7, prevent oxidation

Soybean saponin in soybean can remove free radicals in the body, with antioxidant effect. It can also inhibit the growth of tumor cells and enhance the body's immune function.

8, reduce blood lipids

The plant sterols in soybeans have the effect of reducing blood cholesterol. It can compete with cholesterol in the intestinal tract to reduce cholesterol absorption. In the reduction of hyperlipidemia patients blood "bad cholesterol" at the same time, does not affect the blood "good cholesterol", there is a very good lipid effect.