How to identify real and fake black beans

Black beans are a grain crop with relatively high nutritional value and a relatively high price among cereals. However, in the modern market, many unscrupulous merchants dye yellow soybeans into black beans in pursuit of profit and pass off inferior products as good ones. Therefore, when buying black beans, you must be sure to distinguish between real and fake black beans, otherwise buying fake black beans may have adverse effects on your body. At this time, it is also very important to learn how to distinguish real black beans from fake ones.

1. How to distinguish real and fake black beans

1.1. Different in shape: Black beans are larger than black kidney beans. Most black beans are round, while black kidney beans are flat and oval.

1.2. Look at the appearance: there is a "small white dot" in the middle of the real black beans. The "little white spots" of dyed black beans will be dyed.

1.3. Rub the skin to identify black beans: Dip the black beans in some water, and then rub them on white paper. The color of real black beans will not fade even if you rub them hard on white paper. The color of the dyed black beans will leave color on the white paper after friction.

1.4. Open the beans and look at the kernel: The inner kernels of black beans and black kidney beans are different. The inner kernels of black beans are generally yellow or green, while the inner kernels of black kidney beans are white. When you go to buy beans you can peel them apart and take a look.

1.5. The difference between black beans and black kidney beans can also be seen through soaking because of the different colors of water after soaking. The ones that fade lightly are black beans, while the ones that fade severely are black kidney beans. After soaking black kidney beans, the water becomes black water.

2. Black bean chicken feet soup is one of the ways to eat black beans

2.1. Pick out impurities from black beans, soak them in clean water for 30 minutes and set aside; wash the chicken feet and blanch them in boiling water.

2.2. Put water in a pot, put chicken feet and black beans in, boil over high heat first, skim off the foam, then simmer over low heat until the meat and beans are cooked, add salt to taste and serve.

3. Black bean stewed pig's trotters is the second way to eat black beans

3.1. Wash the black beans and soak them in water for about 3 hours; wash the pig's trotters and split them into two pieces vertically; wash the pig's ears, pig's tail, pig's skin and pig's fat and cut them into small pieces; wash the tomatoes and cut them into pieces; wash and chop the onions; wash the rice and drain it; set aside.

3.2. Mix all ingredients together, put into a pot and boil over high heat, then simmer over low heat until cooked through, add a little garlic oil to adjust the taste; set aside.

3.3. Heat the pan and pour in the garlic oil. When the oil temperature reaches 60%, add the chopped onion and fry until it turns yellow. Add the tomato cubes and fry until cooked. Pour into the pan, pour in water and boil. Heat the pot again and pour in cooking oil. When the oil temperature reaches 50%, add the rice and fry until it turns yellow. Pour into a stew pot with tomatoes, add salt and boil over high heat, then simmer over low heat. When eating, serve with braised pig's trotters with black beans and tomato rice.

The efficacy and function of black beans

Black beans are not only known as the "king of beans", but also known as "plant protein meat". Black beans are rich in protein and contain a variety of vitamins and minerals. Black beans are a treasure for office workers because the vitamin A contained in black beans can relieve eye fatigue and inhibit vision loss. They are very suitable for office workers who overuse their eyes, especially those who often type.

The black bean skin is rich in anthocyanins, which 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 contain soybean globulin, linoleic acid, lecithin and linolenic acid, which can soften and dilate blood vessels, promote blood circulation, and have the effect of lowering blood pressure.

Black bean polysaccharides are non-reducing, non-starch polysaccharides that have a significant effect in scavenging free radicals in the human body. The anthocyanins, polysaccharides, vitamin E and saponins contained in black beans all have antioxidant functions, can remove free radicals from the human body, resist wrinkles caused by aging, and have a beauty effect.

As the saying goes, black nourishes the kidneys. “Red beans nourish the heart, yellow beans nourish the spleen, mung beans nourish the liver, white beans nourish the lungs, black beans nourish the kidneys, and the five beans nourish the five internal organs.” Eating black beans regularly can nourish the kidneys and liver, and is very suitable for people with weak kidneys.