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🥢 Unlock the ancient Japanese superfood magic at home—ferment like a pro!
Kawashimaya Natto Starter Spores Powder is a premium 3g pack of Bacillus Subtilis from soybean extract, delivering ultra-potent fermentation power (1×10¹⁰ CFU/g) to create 22-66 lbs of authentic homemade natto. Packaged in a resealable pouch with a measuring spoon and backed by expert guidance, it’s designed for both natto enthusiasts and small-scale producers seeking fresh, probiotic-rich Japanese superfood with ease and confidence.

















| ASIN | B09325M42X |
| ASIN | B09325M42X |
| Best Sellers Rank | #22,390 in Grocery & Gourmet Food ( See Top 100 in Grocery & Gourmet Food ) #86 in Flavoring Powders |
| Brand Name | KAWASHIMAYA |
| Container Type | Resealable Pouch |
| Cuisine | Japanese cuisine |
| Customer Reviews | 4.5 4.5 out of 5 stars (298) |
| Item Form | Powder |
| Item Package Weight | 0.02 kg |
| Item Weight | 10 g |
| Manufacturer | KAWASHIMAYA |
| Manufacturer | KAWASHIMAYA |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Package Dimensions | 9.84 x 6.26 x 0.28 inches; 0.35 ounces |
| Package Size Name | Single |
| Size | 0.11 Ounce (Pack of 1) |
| Specialty | Low Calorie |
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