1, ingredients: soybean 100g.

2, auxiliary ingredients: rice vinegar 200ml.

3, prepare the ingredients.

4, find a clean and transparent bottle, disinfected with boiling water, dry the water.

5, soybean wash, drain water.

6, the soybean into the pot, do not pour oil in the pot, small fire slowly baked, the surface of the discoloration can be sheng out.

7, the soybean pour into the bottle, cool.

8, pour rice vinegar.

9, the vinegar should be drowned over the soybean.

10, cover the bottle, put it in the refrigerator freezer, after a week can be eaten. During the soaking period, the soybeans will become bigger in size and will suck the rice vinegar dry, so when you see the soybeans beyond the liquid, pour in some more rice vinegar to submerge the soybeans.

11, you can eat ten grains per day, do not eat more.