First, clean the soybeans and cook them in a pot, then take them out and mix them with the ingredients, and then put them in a container for fermentation. The following are specific methods for your reference. First of all, prepare materials: 300g of soybean, 500ml of water, 50g of flour and 300ml of salt water.

1, pour a proper amount of water into the pot, then wash the soybeans and pour them into the pot for cooking.

2. Take out the cooked soybeans and drain them, then pour them into a container, add proper amount of flour and mix well.

3. After stirring evenly, pour the soybeans into the bottle.

4. Then pour in the right amount of salt water.

5. Cover it, seal it, and then expose it to the sun until mold grows.

6. done.