How long can black beans be stored

Black beans can be stored for a long time, but you must choose a dry place when storing them. This way, black beans will not easily sprout. Otherwise, they may be easily infested with insects. Black beans should be eaten as soon as possible after purchase. If they are used in the second year, the taste will not be as good as fresh black beans, and the nutritional value will also be lost. So how long can black beans be stored?

Black beans have a relatively long shelf life and should be edible as long as they do not become moldy during storage.

The skin of black beans is black and contains anthocyanins, which are a good source of antioxidants. They can remove free radicals in the body, especially in the acidic environment of the stomach. It has good antioxidant effects, nourishes the skin, and increases gastrointestinal motility. Black beans are rich in vitamin E and VE, which are also antioxidants that can remove free radicals in the body, reduce skin wrinkles, and maintain youth and health. The crude fiber content in black beans is as high as 4%. Regular consumption of black beans can provide crude fiber in food, promote digestion and prevent constipation.

In addition, according to the theory of traditional Chinese medicine, "black beans are the valley of the kidneys". The black color belongs to water, and water goes to the kidneys. Therefore, people with kidney deficiency can eat black beans to dispel wind and heat, regulate the middle and lower qi, detoxify and promote diuresis. It can effectively relieve symptoms such as frequent urination, low back pain, abnormal leucorrhea in women, and coldness in the lower abdomen.

Although black beans have so many health benefits, they are not suitable to be eaten raw, especially for people with poor stomachs, as they will experience bloating. However, after heating, some of the nutrients will be decomposed by the high temperature.

The role of black beans

1. High protein and low calories: The protein content of black beans is as high as 36 to 40 percent, which is twice the content of meat and 12 times the content of milk. Black beans are rich in 18 kinds of amino acids, especially the eight essential amino acids for the human body, which are higher than the advanced protein standards set by the US FDA. Black beans contain 19% oil, 80% of which is unsaturated fatty acids. The absorption rate is over 95%. In addition to meeting the body's demand for fat, it also has the effect of lowering blood cholesterol. For the elderly, it can soften blood vessels, moisturize the skin and delay aging, especially for geriatric diseases such as high blood pressure, heart disease, liver, and arteriosclerosis.

2. Enhance vitality and energy: According to the theory of traditional Chinese medicine, beans are the valley of the kidneys, the black color belongs to water, and water goes to the kidneys, so black beans have many functions in the kidneys. Human aging often manifests itself in kidney function. If you want to prolong life, prevent aging, and increase vitality and energy, you must first focus on nourishing the kidneys.

3. Prevent brain aging: Black beans contain about 2% of yolk, which can improve brain function and prevent the brain from becoming dull due to aging. Black beans are rich in trace elements. Every 100 grams of black beans contains 370 mg of calcium, 577 mg of phosphorus, 12 mg of iron. The content of other elements such as zinc, copper, magnesium, molybdenum, selenium, fluorine, etc. is not low. These elements can meet the needs of the brain and delay the aging of the brain. It can reduce blood viscosity and keep body functions intact.

4. Beauty and skin care: Many important ancient pharmacopoeias record that black beans can keep the skin young, improve eyesight, blacken hair, and make the skin white and tender. Su Dongpo, a writer in the Song Dynasty, once recorded the scene of young men and women taking black beans for beauty purposes inside and outside the palace in the capital Bianliang.

5. Prevent constipation: The crude fiber content in black beans is as high as 4%, which is much higher than that in soybeans. Crude fiber has a good laxative effect. Constipation is a common problem among middle-aged and elderly people. Modern people’s diet is too refined, resulting in too little intake of crude fiber, which increases the burden on the intestines, easily causing constipation, and causing hemorrhoids and colorectal cancer. Eating some black beans every day to increase crude fiber can effectively prevent constipation.