KOJI BARISTA BOX
Start your new tea ritual powered by Japanese fermentation.
5 essentials for crafting café-style matcha and hojicha lattes at home.
Experience a new type of sweetness with Koji Syrup, a naturally fermented sweetener crafted from rice koji.
Let's make a matcha latte
using the products in Koji Barista Box!
What’s inside?
Koji Syrup
(8.5 oz / 240g)
Fermented rice koji syrup adds caramelized sweetness with umami backbone. No sugar added.* Just the natural sweetness from fermented rice.
*Contains no added sugar. Not a low-calorie food.
Premium Matcha
(0.70 oz / 20g)
Award-winning, first-harvest matcha with gentle sweetness & silky umami. Crafted in Ureshino — Japan’s origin of industrial tea.
Premium Hojicha Powder
(0.70 oz / 20g)
Roasted green tea with caramel-cacao notes. Blend the finely milled powder into drinks & desserts for a toasty, comforting twist.
Chasen (Whisk)
With 100 delicate tines, this bamboo chasen aerates matcha into a silky froth. Bring the spirit of the Japanese tea ceremony to your kitchen.
Chashaku (Tea Scoop)
A bamboo tea scoop used in the Japanese tea ceremony. Designed to portion the perfect amount of matcha while bringing a moment of ritual to your daily cup.
Star Ingredient: Koji Syrup
Born from upcycled rice and koji, the traditional Japanese fermentation starter used for miso, soy sauce, and sake, this syrup brings a mellow sweetness layered with toasty, nut-like depth. Imagine light caramel with the aroma of roasted grains. Subtle, comforting, and full of dimension.
So, what is Koji?
Koji is a living culture (Aspergillus oryzae) treasured in Japan for centuries. It breaks down the starches in rice into simple sugars and amino acids, releasing umami and natural sweetness in the process. It’s the quiet force behind Japan’s most iconic seasonings from miso and soy sauce to mirin and amazake.
Add a sweet twist to your ritual — without the added sugar.*
The great thing about this innovative syrup is, there’s no added sugar.* Its gentle sweetness develops naturally through fermentation, as rice starch slowly transforms into sugars and amino acids. Stir it into your latte for a smooth, balanced flavor born from fermentation.
*Contains no added sugar. Not a low-calorie food.
Furoshiki Gift Wrapping for the Holidays
In Japan, Furoshiki has long been used to wrap gifts, carry belongings, and protect what matters most.
The act of wrapping itself is a gesture of care — a quiet way of saying, “this is something special.” Choose from four Furoshiki designs, crafted to be used again and again. Enjoy it as a table accent, a bento box wrap, or a way to carry something meaningful of your own.
Choose between four different designs.
About The House of Umami
Welcome! I’m Ayako Yuki, the Umami Curator and Founder of The House of Umami. Our mission is simple: to bring rare, extraordinary Japanese ingredients to culinary explorers in the U.S. — while supporting the small farmers and artisans behind them. Many of these makers are at risk of disappearing due to an aging population with no one to carry on their craft. By purchasing this Koji Barista Box, you’re not only tasting umami at its purest. You’re helping preserve centuries-old techniques, deep-rooted traditions, the very source of incredible umami flavors. Thank you for being part of this movement.