Equipment Pressure cooker Fine-mesh strainer Medium mixing bowl Mixing spoon Glass container Ingredients 400 g dry soybeans 1/2 scoop Kawashimaya Natto Starter Spores (use the included tiny spoon) 3 tbsp reserved hot soybean cooking water Filtered water (for soaking and steaming) 1.Soak the Beans:12–18 hours ahead. Wash the soybeans thoroughly in cold water until the water runs clear. Place the beans in a large bowl and add enough filtered water to submerge them completely, w

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