after cleaning the raw black beans, pick out the impurities and dry them in a ventilated place. It is expected to take half a day in sunny days. Then put it into a closed container (preferably a glass bottle), the amount of which is 1/3 of the container, then put it into the container

Shanxi aged vinegar

, seal it, and put it in the shade for two months, then it can be used. It tastes the same as cooked. Keep eating, just two spoonfuls a day. Note that people with kidney disease should not eat it. Principle: black enters the kidney,

the kidney dominates the bone

, and the teeth are the rest of the kidney. Good teeth, good appetite, strong legs.