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🧬 Unlock the ancient Japanese superfood magic—make your own probiotic powerhouse today!
Kawashimaya Natto Starter Spores Powder is a premium 3g pack of Bacillus Subtilis sourced from soybean extract, delivering a potent 1×10^10 CFU/g fermentative power. Designed for making 10-30 kg of authentic Japanese natto, it includes detailed instructions, a measuring spoon, and comes in a resealable pouch to maintain freshness. Ideal for health-conscious millennials seeking to craft nutrient-rich, probiotic-packed natto at home or small scale, with dedicated customer support and a satisfaction guarantee.

















| ASIN | B09325M42X |
| ASIN | B09325M42X |
| Best Sellers Rank | #24,051 in Grocery & Gourmet Food ( See Top 100 in Grocery & Gourmet Food ) #87 in Flavoring Powders |
| Brand Name | KAWASHIMAYA |
| Container Type | Resealable Pouch |
| Cuisine | Japanese cuisine |
| Customer Reviews | 4.4 4.4 out of 5 stars (306) |
| Item Form | Powder |
| Item Highlight | Bacillus Subtilis from Soybean Extract to Make Homemade Natto |
| 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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