2. First soak the soybeans for one night, clean them, put gauze on the steaming rack, spread the soybeans evenly, select the steaming function, adjust the time for 90 minutes, and steam for a long time. If there is not enough water, you can open the handle cover beside the pot and add water from the water injection port.

3. Then put the soybeans cooled to about 40 degrees in a clean container, add sugar and a bag of natto bacteria, stir well, and put them in two stews without lids. Pour clear water into the steamed stew to the water level before putting it in, put it in, and cover it with a layer of wet gauze.

4. Cover it finally, but don't cover it too tightly, leaving a gap. Fermentation time 14- 16 hours, so you can see that the surface of beans is lightly covered with a layer of white bacteria, and natto is poured out of the stew.

5, simple production, light and delicious homemade natto is ready.