2. Soak black beans in vinegar. Black beans can also be made into vinegar soaked black beans for people to eat. When making, it is necessary to put a proper amount of black holes into a pot and fry them until the surface epidermis cracks, and then put them into a clean glass bottle and soak them in a proper amount of rice vinegar. After the black beans are soaked and softened, they can be eaten directly at 7- 16 every day, which can prevent "three highs" and lose weight. This is the best health care effect of all ways to eat black beans.