Koji Explorer's Bundle
Koji Explorer's Bundle
"I used to grow koji every week when I worked at the fermentation lab at Sean Brock's Audrey restaurant in Nashville, so I know good koji...I was thrilled to discover Koji House..." - Peter, Fermentation Specialist @ The Lab at Audrey
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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Are you a koji beginner? You'll receive a FREE digital copy of our Koji Quick Start Guide with every koji purchase!
- 100% Plant-Based
- 100% Handmade
- 100% Gluten Free
Share this product with an adventurous cook!

See what folks are saying:
"So I totally knew nothing about koji a few months ago. My cooking has forever been changed ."
- Jordan
"It’s an absolute game changer. As a former chef and now home chef, koji has changed how I cook."
- Mike
"I am obsessed with the results and am so glad I found a small business with a great product."
- Ana

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