1, buy proper amount of soybeans and vinegar (I use rice vinegar)
2. Wash the soybeans and pour out half a bottle of vinegar.
3. Put the clean soybeans in the vinegar bottle and cover them. After one month, you can eat them.
4, the amount of your own choice, soybeans will rise after soaking for a while, be sure to let the vinegar soak the soybeans.
5. How to eat: If conditions permit, you can eat some from time to time. Personally, I think it would be better to eat more, 20 to 40 capsules a day. I just eat it in the morning and when I come back in the evening, sometimes more, sometimes less, usually about a dozen capsules a day.