Welcome to Journey of Flavour,

Powered by Microbes

Microbes live all around us, in soil, air, and our guts.

With Choro Koji's products, harness their power to unlock true ingredient potential and flavour.

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About us

Buckwheat Consumption and Its Positive Impact on Pollinator Activity and Biodiversity

Buckwheat Consumption: Numbers Showing Pollinator Boost
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Biodiversity Impact: Pollinator Increase Through Buckwheat
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Source: The Guardian


Koji creates sustainable world

- For Our Future and Planet -

At Choro Koji, we blend ancient Japanese fermentation techniques with modern-day sensibilities to create products that are organic, pesticide-free, and additive-free. 

Microbes are everywhere, though we often don’t notice them. They exist in the soil, the air, and even within our guts. We utilise their natural abilities to reveal the full potential and rich flavours of ingredients. Experience the strength of our homemade raw koji, brimming with enzymatic power.


We use the grains within the Netherlands or EU countries and sell the fermented seasoning also based on the weight in the market and several stores.

100% Plant-Based

No animal products are used in our products.

No additives

If we optimize the ability of microbes, the seasonings do not require any additives to add flavor or taste. So we sticks to natural fermentation.

All Organic

Grain needs healthy soil and the healthy soil leads to a better future planet for the next generation.


Miso, Soy Sauce, Amazake, Sake are all made from koji

- You are what you eat -

We have some types of koji products, such as Miso, Soy Sauce, Amazake, Shio Koji, Shoyu Koji, and so on.
These seasonings make dishes rich taste and get cooking easy.

Shio Koji - Shoyu Koji

塩麹 - 醤油麹

Shio Koji: Versatile seasoning made from koji, salt, and water. Shoyu Koji: Flavourful blend of koji and soy sauce.



Miso adds a rich umami flavor to a variety of dishes, including soups, sauces, and marinades.



It is rich in nutrients and has a smooth, creamy texture. Enjoy it chilled or warm as a delicious and healthy drink.

Koji Products Recipes

- For sustainable world -

Discover the magic of koji in our delicious and easy-to-follow recipes! Koji, a traditional Japanese ingredient made from fermented rice, is known for its unique ability to enhance flavours and add depth to a wide range of dishes.

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