Brown Koji Rice Concentrate (Organic Genmai)
200g • 4-day supply with recommended daily intake of 50g
Price range: $18.30 through $247.05
It will be restocked in the end of May – early June.
 | No added sugar |  | Alcohol Free |  | Vegan |
 | Gluten-free |
- A naturally sweet, alcohol-free rice drink crafted through traditional koji fermentation.
- Made from fermented rice sourced from Japan.
- Product of Japan
How to Enjoy
Dilute 1:1 to 1:2 with water or your preferred beverage. Also suitable as a natural sweetener, in smoothies and culinary preparations. Recommended intake: 50g of concentrate daily • 1 pack lasts 4 days
Ingredients
Rice koji (Japan-origin rice), water
Storage
Store below 25°C in a cool, dry place. After opening, refrigerate and consume in a week.
Expires 7 months from manufacturing date.
Benefits
Digestive Support & Microbiota Balance
Clinical research shows that daily intake of koji fermented rice drink can improve bowel habits in healthy adults. This effect was associated with measurable changes in gut microbial composition, including increases in Bacteroides and decreases in Blautia.
Skin Hydration & Barrier Function
Adults consuming koji amazake daily for eight weeks maintained higher cheek skin water content compared with placebo. This benefit is linked to the presence of glucosylceramide a bioactive component quantified in the koji beverage at levels comparable to those shown to support skin hydration in other clinical contexts.
Fermentation-Derived Wellness Properties
Koji fermented rice drink with Aspergillus oryzae contains natural components such as glucose, isomaltose, and fermentation-derived oligosaccharides. These compounds have been studied for potential roles in gut function and metabolic regulation.
References
Kurahashi A, et al. Intake of Koji Amazake Improves Defecation Frequency in Healthy Adults. Journal of Fungi. 2021;7(9):782. PMCID: PMC8470246.
Enomoto T, et al. Koji Amazake Maintains Water Content in the Left Cheek Skin of Healthy Adults: A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group, Comparative Trial. Clin Cosmet Investig Dermatol. 2022;15:1283–1291. PMID: 35836478.
Ingredients, Functionality, and Safety of the Japanese Traditional Sweet Drink Amazake. PMC. PMC8227387.
Clean By Design
No Added Sugar
Our sweetness comes naturally from fermentation. Koji gently transforms premium Japanese short-grain rice into naturally sweet compounds, creating flavor without adding refined sugar.
No Artificial Additives
Every ingredient is chosen with care and nothing unnecessary is added. No artificial flavorings, colors, preservatives, or shortcuts — just a clean process guided by nature.
Vegan
Koji fermentation unlocks natural sweetness and umami from plant ingredients. Made entirely without dairy, eggs, or animal products, our creations are fully plant-based.
Gluten-free
Crafted from rice and carefully selected ingredients, our products are naturally gluten-free — allowing you to enjoy pure flavor without compromise.
Where We’re Starting
A Mother’s Vision,
Refined by Michelin Expertise
While our heart is rooted in home-grown wellness, our recipes are refined by world-class expertise. We’ve collaborated with Michelin-starred culinary talent to bridge the gap between traditional fermentation and gourmet excellence.
Our first product is a dairy-free, sugar-free ice cream made from fermented rice. It’s creamy, lightly sweet, and easy to enjoy without the heaviness of conventional desserts.
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Koji Rice Concentrate – Monthly Subscription
Original price was: $91.50.$86.92Current price is: $86.92. / Month Add to cart
Will definitely order again! Yuki is very helpful and friendly too as this is my first time trying. The best hojicha latte I tried was the collaboration with HAVLA. Now I bought my own hojicha to try to do it on my own.