What is Organic Dried Brown Rice Koji (Marukura) The organic dried brown rice koji (Aspergillus oryzae or rice malt) Marukura is a brown rice koji with organic JAS certification,...

100% MONEY


Availability: Out Of Stock


What is Organic Dried Brown Rice Koji (Marukura)

The organic dried brown rice koji (Aspergillus oryzae or rice malt) Marukura is a brown rice koji with organic JAS certification, made by the craftsmen from Okayama Prefecture.

Not only JAS, but it also passed the FDA (American Food and Drug Administration) accreditation test which is said to be the most strict food and drug accreditation in the world.

The craftsmen finish this rice koji carefully and slowly with warm air so the koji fungus will not break.

Due to its popularity, we have prepared a large capacity of 10kg Dried Rice Koji (Marukura). You can use this for business.※ After receiving your order, the product will be ordered from the manufacturer. * There are times when production is stopped by the manufacturer or there is a delay in shipping. In that case we will contact you separately. Please note.

Dried Rice Koji (Marukura)

You can use rice koji for making sweet sake (amazake), handmade miso (traditional Japanese seasoning made from fermented soya beans and barley or rice koji), shio koji (Japanese natural seasoning made by salt, water and rice koji) etc. You can also use it as a substitute materials when making yeast food such as bread and sweets.


We pack in carefully it a box so it could fit 10kg.



About The Difference Between White Rice Koji and Brown Rice Koji

At first glance, the color is different. But not only its appearance, but the taste and fragrance are also different.

If you make miso or sweet sake with white rice koji, the result will be very sweet. With the refreshing scent, there are almost no Japanese people who would dislike it. Also, since the production volume is also large, white rice koji is easy to obtain. The dish recipe using white rice koji is also abundant, so it is perfect for people who are a beginner at using koji.

Brown rice koji can be used for making miso, shio koji, and sweet sake as well. But compared with white rice koji, the unique sweetness of brown rice has become its attractiveness. It tastes slightly bitter and remains in the mouth. This subtle bitterness and flavor is the real pleasure of brown rice.

There are lots of previous costumers who reorder the brown rice koji when try tried it for the first time. The deep sweet scent brings so much presence.

For those who have already used the white rice koji and grasped the know-how of the fermentation process, this brown rice koji will be our next recommendation item you would like to try!

Even those who use koji for the first time, please note that brown rice koji is not hard to handle. Like white rice koji, you can use it for various dishes. The only difficulty is that brown rice koji cannot be stock up easily because of the small amount of distribution.



Costumer's Review

We received a lot of review from costumers who previously purchase this product!


I made shio koji with rice and koji.

The handmade shio koji becomes more mellow as the days passed, and it is delicious!

I enjoy using this product for making various things.


I've completely run out of dried rice koji!

I've completely run out of dried rice koji, so I will buy a lot of amount for this product!


This koji is slightly sweet.

I boiled the 150g of cooked rice and 900ml of water to the pot and put in the koji when the temperature reaches 60-degree Celcius.

After I transferred it to the rice cooker and keeping the lid open for 10 hours in a warming mode, everyone can make a sweet sake without fail!


It's tasty!

It doesn't taste too strong. It's tasty.


The miso made from this dried rice koji has a thick texture.

It's very tasty. I have made it countless times.


I was worried about the expired date because I use it overseas.

But the expired date at the package is exactly six months.

I made a delicious sweet sake so I recommend this rpoduct!


I'm very thankful that the product packing was done nicely, and there also a good explanation of the product.

If the koji dishes making goes well, I would like to use this product again.


How to Use Organic Dried Brown Rice Koji (Marukura)

You can use it to make sweet sake, homemade miso, and shio koji easily at home. The dishes will be more delicious if you use the high-quality koji made by old-fashioned way!

Dried Rice Koji (Marukura)


recipe email For those who ordered this product for the first time,
you will receive an informational recipe email for shio koji, sweet sake, and miso.



Homemade shio koji can be made by mixing dried koji, salt, and water and then fermenting it.


乾燥麹 味噌

If you mix soybean and salt in dried koji and fermented it for a long time, you can finish the handmade miso. In the good's bag, it is stated to use it after returning it to raw koji. But you can use it as dried koji when you are making the homemade miso.



Mix dried koji and hot water of about 55-60 degree Celcius in a rice cooker or other heat incubator. Keep it warm for about 6 hours, you can make a delicious sweet sake only with rice koji!


The Difference Between Dried Koji and Raw Koji


Koji is divided into two types: dried koji and raw koji.

Dried koji is a koji that has been dried by clearing the moisture inside.
In the other side, raw koji is weak to bacteria, which has a possibility to easily decreasing it's quality by doing self fermentation. Therefore, it's become the raw koji's disadvantage that the preservation if difficult. To solve this disadvantage, here comes the dried koji.

Unlike raw koji, dried koji has resistance to bacteria. So the self-fermentation could be suppressed. The dried koji is just dried to prevent the self-fermentation. Also, there almost no difference from the taste of dried koji comparing to raw koji.


Message from Food Manufacturer


The Marukura Food Manufacturer do the production and sells koji, sweet sake, and miso at Kurashiki City, Okayama Prefecture. In addition to domestic sales, we are exporting organic food (such as brown rice sweet sake, white miso, wheat miso, natto miso, etc) to North America, European Union, Australia, and Southeast Asia. Because of that, we strive to deal not only with domestic hygiene standards but also overseas hygiene standards.

In November 2017, we passed the examination from FDA (United State's Food and Drug Administration) which is said to be one of the most difficult examinations. Because of that, we can do our exports well.

There are indeed lots of companies with a long history that can not be imitated outside Japan. We take advantage of know-how to cultivated to produces food that can be eaten deliciously, safely and securely. That is the restoration of a brand Made in Japan.


The Features of Organic Dried Brown Rice Koji (Marukura)

  • -Because this product dried at a low temperature, it is effective for long-term preservation.
  • -Production doesn't use any additives and chemical substances.
  • -Passed the Organic JAS Certification and American Food and Drug Administration (FDA) Certification.


The Important Point of Organic Dried Brown Rice Koji (Marukura)

  • -The package contains 10kg of Organic Dried Brown Rice Koji (Marukura)
  • -Expired date: half year from production.
  • -When saving dried koji, please avoid places with high temperature, high humidity, and direct sunlight that could change the dried koji's taste and quality. Please save it in a cool place such as the refrigerator and use sealed containers so the dried koji won't absorb any moisture.

Product Details

Name Okayama's 100% Organic Dried Brown Rice Koji (Marukura)
Contents 10kg
Expired Date Half year from production
Preservation Method Please save in a low humidity refrigerator.
Just added to your wishlist:
My Wishlist
You've just added this product to the cart:
Go to cart page