Material preparation: 500g of soybean, 2g of natto powder, cold water, pressure cooker, clear water, plastic container, yogurt machine and so on.

1 Wash soybeans and soak them in cold water overnight.

2. Pour off the remaining water from soaking soybeans.

3. Put the soybeans into the pressure cooker, cover the lid and cook.

4. Prepare natto powder.

5. Add appropriate amount of water and mix well.

6. Put the cooked soybeans into a container for making natto.

7. Pour in natto powder and mix well.

8. Put the natto container into the yogurt machine, turn on the power to select the natto file, and the machine will start to work. After the work, you can enjoy it by turning off the power.