Step1:Wash the black beans and fry them in a dry pot.
Step2:Stir fry until the beans burst.
Step3:Find a container that can be sealed. Put the fried beans into the container.
Step4:Pour in vinegar. The amount of vinegar must be no more than black beans, because vinegar will swell after a period of time.
Step5:Seal the jar.
Step6:Open the jar in a week. The black beans are already swollen. You can eat them at this time.
Cooking tips:1. The ratio of vinegar to black beans is 2 to 1. 2. Take 510 pills a day after soaking. 3. People with bad stomachs should eat less. There are skills in making delicious dishes.