Koji Explorer's Bundle
Koji Explorer's Bundle
A bundle for the serious culinary explorer.
Unlock the full spectrum of flavor with the Explorer's Bundle, featuring 1 kilo of both of our hand-crafted, small batch rice kojis—your all-in-one starter pack for sweet and savory ferments.
Crafted by hand at Virginia’s first and only sake brewery, this bundle includes:
Organic Umami Style Rice Koji:
Ideal for bold, umami-rich creations like miso, shoyu koji, garum, and fermented hot sauces. Made with BF-1 spores from Osaka, Japan and organic long grain rice grown in California.
Polished Sweet Style Rice Koji:
Your go-to for delicate, sweet ferments like amazake, sake, and amakoji. Made with Hi-G spores from Osaka and 50% polished Calrose short grain rice from California.
From traditional Japanese ferments to modern culinary experiments, this bundle gives you the versatility and premium quality you need to start fermenting with confidence.
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- 100% Plant-Based
- 100% Handmade
- 100% Gluten Free

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Koji FAQs
Is this koji dry?
Yes! All koji is dried to order after growing to maximize freshness, potency, and shelf life.
What can I make with my koji?
Umami koji for umami stuff, and sweet koji for sweet stuff. Easy peasy. For recipe inspo, click here.
It also makes a great gift for that experimental home cook in your life ;)
How long will my koji last on the shelf?
Because all koji is grown and dried fresh, shelf life is up to a year when stored properly. Just check the "USE BY" date on the back of the bag!
How should I store my koji?
All our koji should be stored in a cool, dry place - same as your other pantry staples. No freezing or refrigeration is necessary.
Is it Kosher?
Yes! Our production facility is Kosher certified.

Have a special request?
Buying for your retail space, restaurant or next workshop?
We have special rates just for you.