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Limited Release 1/1 Batch

Low stock: 27 left

Celebrating 3 years of koji craft with a limited batch from Koji House's exclusive reserve

Only 160 Units Made

Koji Reserve Bundle

Koji Reserve Bundle

A Balanced, Sweet/Savory Koji Best for:
Shiro Miso, Shio Koji, Koji-infused Fats, Lactoferments, Marinades and More.

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About this bundle:

Unlock the full spectrum of flavor with the Koji Reserve Bundle, featuring 1 kilo of our limited reserve koji, and 1 kilo of each of our sweet and umami bestsellers.

Crafted by hand at Virginia’s first and only sake brewery, this bundle includes:

1 Kilo of Reserve Polished Umami Rice Koji:

Ideal for subtly savory applications like shio koji, shoyu koji, mellow misos, and koji-infused fats. Made with BF-1 spores from Osaka, Japan and premium sake-grade, polished rice grown in California.

1 Kilo of Organic Umami Rice Koji:

Ideal for bold, umami-rich creations like miso, shio koji, shoyu koji, garum, and fermented hot sauces. Made with BF-1 spores from Osaka, Japan and organic Calrose rice grown in California.

1 Kilo of Polished Sweet Rice Koji:

Your go-to for delicate, sweet ferments like amazake, mirin, 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 push your craft further.

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Ferment Your Best Ideas

Premium, purpose-built koji that gives you the versatility and reliability to start your most satisfying projects, recipes, or wild experiments.

Elevate Your Menu

Instantly enhance your menu and keep guests coming back for more. Our premium koji delivers the quality and consistency to compliment your best dishes and ideas.

Share New Flavors

Break the mold and discover flavors beyond the mainstream. Explore traditional Japanese fermentation, or apply your own flare to make what the world is waiting for.

Handcrafted with consistency you can count on.

See what other satisfied makers are saying:

Koji FAQs

Is this dry koji?

Yes! All our koji is slowly dried to order to maximize freshness, potency, and shelf life.

What can I make with my koji?

This koji is best for miso, shio koji, marinades, dry rubs, and all things savory. For quick tips and recipe inspo, click here.

Have an experimental cook in your life? It also makes a great gift!

What is the shelf life?

Because our koji is grown and dried fresh, shelf life is up to a year when stored in a cool, dry place. 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.

What about allergens?

None! Our koji is 100%:

  • soy free
  • gluten free
  • nut free
  • vegan

Have a special request?

Buying for your retail space, restaurant or next workshop?

We have special rates just for you.

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