Summer is easy to go bad for about two days, and it will be moldy. It is not recommended. Seeing that the surface is moldy, there will be wire drawing when the spoon is turned over, and that's all. If you think the surface layer is not good-looking, you can scrape the beans off the surface.
Specific practices are as follows:
First, clean the soybeans and cook them in a pot, then take them out and mix them well with the ingredients, and then put them in a container for fermentation. Here are the specific methods for reference. First, prepare the materials: 300g soybean, 500ml water, 50g flour and 300ml salt water.
1, pour a proper amount of water into the pot, then wash the soybeans and pour them into the pot to cook.
2. Take out the cooked soybeans and drain them, then pour them into the container, add the right amount of flour and mix well.
3. After mixing well, pour the soybeans into the bottle.
4, and then pour the right amount of salt water.
5. Cover and seal, and then expose to the sun until mold grows.