Features: 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 culinary use. Instructions: Soak soybeans for about 10 hours, steam for approximately 2 hours until soft, then cool to around 60°C. Add Bacillus natto to the beans and stir well. Use a natto fermentation machine for 12–18 hours or longer to complete the fermentation process. 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 marked on packaging Note: 1. Allow for 0–2 cm measurement variations due to manual sizing; ensure you are comfortable with this before ordering 2. Due to differences in monitor displays, actual product color may vary slightly from images 3. Accessories shown in pictures are not included unless specified Package includes: 10 x Natto Fermentation Powders