2. Soak the beans in clear water. If it is hot, you can soak them in the refrigerator. Let all the beans foam without wrinkles.
3. Heat the pot and fry the beans in the pot. Let the beans burst. If the beans are cracked, you can turn off the heat.
After turning off the fire, there is still residual heat in the iron pot. At this time, stir fry a little until the pot is cold and the beans are cold.
5. Choose to brew rice vinegar. Put black beans in a clean, oil-free and water-free sealed bottle. Pour rice vinegar into black beans.
Because black beans are relatively dry and will absorb vinegar, it is necessary to open the lid from time to time and add vinegar. The sealed pot for soaking beans should be stored in a ventilated, cool and shady place. You can eat it after soaking for a month. Although soaking black beans in vinegar has many advantages, don't eat too much at a time, just three or five capsules at a time.