[header] How to make natto [title] Wash the soybeans. [step] For the natto, you'll need 4 cups (800 g) of soybeans. Place the beans in a colander or strainer, and rinse them thoroughly under cold water in the sink. 
Shake the beans well afterward to remove the excess moisture. [substeps] As you rinse the soybeans, remove any shrunken or discolored beans.