Features: and high quality Natto is a traditional Japanese food made by fermenting soybeans with Bacillus subtilis. Easy to use, suitable for making high-quality natto at home. Natto powder can be sprinkled and mixed with your favorite foods for versatile cooking options. Step 1: Soak soybeans for about 10 hours. Step 2: Steam the soybeans for about 2 hours until soft, then cool to approximately 60 degrees. Step 3: Add Bacillus natto to the beans and stir well. Step 4: Use a natto fermentation machine; after 12–18 hours or more, natto is ready to enjoy. Store in a refrigerator in a cool, dark, low-humidity environment. Specifications: Ingredients: Natto, Starch Storage method: Keep sealed in a cool and dry place. After opening, store in a low-temperature refrigerator. Shelf life: 18 months Net content: Approximately 1g per bag (10 bags) Production date as indicated on packaging Note: 1. Please allow 0–2 cm variation due to manual measurement; ensure you are comfortable with this before ordering. 2. Due to differences in monitor displays, the image may not reflect the actual product color. 3. Other items shown are not included. Thank you for your understanding. Package includes: 10 x Natto Fermentation Powders