---
product_id: 679272097
title: "Japanese Natto Starter Spores () - 3g (enough to make 30kg of natto). 100% Product of Japan"
brand: "nattomoto"
price: "A$62"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/679272097-japanese-natto-starter-spores-3g-enough-to-make-30kg-natto
store_origin: AU
region: Australia
---

# makes 30kg fresh natto 3g precision dose 100% authentic Japan Japanese Natto Starter Spores () - 3g (enough to make 30kg of natto). 100% Product of Japan

**Brand:** nattomoto
**Price:** A$62
**Availability:** ✅ In Stock

## Summary

> 🍣 Unlock the ancient superfood magic of Japan—ferment your own natto like a pro!

## Quick Answers

- **What is this?** Japanese Natto Starter Spores () - 3g (enough to make 30kg of natto). 100% Product of Japan by nattomoto
- **How much does it cost?** A$62 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/679272097-japanese-natto-starter-spores-3g-enough-to-make-30kg-natto)

## Best For

- nattomoto enthusiasts

## Why This Product

- Trusted nattomoto brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Organic & Pure:** Contains only Bacillus Subtilis Natto spores—no additives, preservatives, or fillers.
- • **Complete Starter Kit:** Includes a measuring spoon for precise fermentation control—perfect for consistent results every time.
- • **Culinary Versatility:** Ideal for health-conscious millennials craving authentic Japanese cuisine and gut-friendly superfoods.
- • **Ultra-Efficient Yield:** Just 3g spores create 30kg of fresh, homemade natto—maximize your batch with minimal input.
- • **Authentic Japanese Quality:** Sourced and produced entirely in Japan, ensuring traditional purity and unmatched flavor.

## Overview

This 3g pack of Japanese Natto Starter Spores contains pure Bacillus Subtilis Natto, enough to ferment up to 30kg of fresh natto. 100% produced in Japan, it includes a measuring spoon for precise use and is perfect for anyone seeking authentic, organic natto fermentation at home.

## Description

Nattomoto Japanese Natto Starter Spores () - 3g (enough to make 30kg of natto). 100% Product of Japan

## Features

- 3g of Natto Starter Spores to make 30kg of Natto
- Ingredients: Bacillus Subtilis Natto (soybean spores)
- Measuring Spoon Included
- 100% Product of Japan
- For English Instructions, Order from Soymerica

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions | 8.71 x 2.69 x 2.39 cm; 3 g |
| Manufacturer reference | Y1-121Z-Y43M |
| Units | 3 Grams |
| Brand | Nattomoto |
| Cuisine | Japanese cuisine |
| Format | Whole |
| Age Range Description | All ages |
| Special Feature | Organic |
| Manufacturer | Soymerica |

## Product Details

- **Brand:** Nattomoto
- **Item weight:** 3 Grams
- **Specialty:** Organic
- **Item form:** Whole
- **Diet type:** Vegetarian

## Images

![Japanese Natto Starter Spores () - 3g (enough to make 30kg of natto). 100% Product of Japan - Image 1](https://m.media-amazon.com/images/I/71VZDZoEnyL.jpg)

## Questions & Answers

**Q: Will these propagate in yogart using a yogart maker?**
A: Yes, the yogurt machine can be used to ferment natto.  I have used a yogurt maker to make natto for myself and my family for more than a year.  This natto start is very easy to use!

**Q: Can I store this product in the fridge ?**
A: You don't need to, but the natto bacillus survives a wide range of temperatures.  It survives in your home freezer and also at 220+ F.  This product, however, didn't work for me, and I've switched back to using store-bought natto to make more natto at home.

**Q: What are the instructions? I only received Japanese version**
A: Here you go:
Utensils Needed:  -Soybeans 2.2lbs (1kg), -Sterilized Water 10 ml (Boil water for 5-10 minutes), -One spoonful of Nattomoto powder (0.1g) please note 1 special measuring spoon is provided in every box, -Sterilized Cheese Cloth (small mesh), -Sterilized Pot, -Sterilized Stainless Steel Large Spoon, -3-4 Sterilized ovenproof glass containers with lids.  Instructions: 1. Wash the soybeans and soak for 9 hours (Summer) to 12 hours (Winter) 2. Drain and boil the soybeans for 9 hours on the stove (or use a pressure cooker)* until the soybeans are soft enough to easily break with your fingers. *If you use the pressure cooker, please follow the directions with that. 3. Drain and place the beans in a sterilized pot.  4. Dissolve one special spoonful of Nattomoto (0.1g) in sterilized water 10ml. 5. Pour Nottomoto solution immediately over the beans and stir them carefully with a sterilized stainless steel spoon (Beans should still be warm). 6. Divide the bean mixture in 3-4 shallow glass containers. Do not put a lot of beans in 1 container, as it should be a thin layer. Be extra careful not to spill any bean mixture. Discard any mixture that is spilled as it should NOT be added back to the containers. 7. Put sterilized cheese cloth on the container and cover with a tight fitting lid. 8. Preheat the over or a Japanese Warmer (KOTATSU) to 100 degrees Fahrenheit (38 degrees Celsius). 9. Place the covered containers in 100 to 103 degrees F (38 to 40 degrees C) oven or warmer. Let the natto ferment for 22 to 24 hours. 10. Remove from the oven (or warmer), remove the lid (keep the cheesecloth in place) and put it into the refrigerator for one night. The next morning the natto is ready!  CAUTION!!! For optimal results: The entire process should be as sterile as possible. Every cooking utensil must be sterilized by boiling each instrument for 5-10 minutes prior to making the natto.   
My personal notes:  Good luck and I hope this goes well for you.  I've made several batches and it isn't as stringy as the kind you buy.  Moving forward I'm going to buy frozen natto at my local Chinese grocery store and add those into my homemade beans. Gail is correct, there are some great YouTube vids out there.

**Q: Has anyone used okara (soy pulp) for making natto with this culture?**
A: I have because my husband can’t stand the texture of natto.  It turned out somewhat like slightly dry potato salad in texture (but he did’t like it anyway, so I went back to making regular natto).

## Frequently Bought Together

- Japanese Natto Starter Spores (Nattomoto) - 3g (enough to make 30kg of natto). 100% Organic Soybean Extract. 100% Product of Japan
- Soymerica Non-GMO Soybeans - 7 Lbs. Identity Preserved (IP). Great for Soy Milk and Tofu. 100% Product of USA. Non-GMO Project Verified
- Kawashimaya Natto Starter Spores Powder 0.1 oz (3g), Can make up to 10-30kg Natto, Made From Organic Soybean Extract

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-12*