What is rice malt amazake | Ren MURO, a store specializing in rice malt and amazake [official mail order]

“Komekoji amazake” is made by mixing steamed white rice or rice porridge with rice koji and letting it rest for 8 hours to several days. It is a fermented food made by fermenting rice.

Glucose is produced by amylase, an enzyme produced by the staphylococcus bacterium, that decomposes the starch that is the main component of amazake. Glucose leads to sweetness, so rice koji amazake basically does not contain sugar.


On the other hand, “sake lees amazake” is made by dissolving sugar and water in sake lees. It contains a small amount of alcohol because it uses sake lees from the sake manufacturing process.


Amazake sold at Ren MURO Kagurazaka is all rice koji amazake. Therefore, it does not contain alcohol, so you can enjoy it with confidence.

The history of Amazake made from rice malt

There are various theories about the origin of malted rice amazake, but in Japan, there is a description that seems to be malted rice amazake in the "Nihon Shoki" etc., which dates back to the Kofun period. It was also called "one night sake" because it was completed in one night.

During the Heian period, cold amazake was popular among aristocrats, but amazake became popular in earnest during the Edo period.

At that time, many people were exhausted during the hot summer months, and many people became ill or died during the summer. It was nothing.

Amazake vendors paraded through the streets of Edo, Osaka, and Kyoto, and it is said that the price of a cup of amazake at that time was about 200 yen in today's money.

Amazake made from rice malt was cherished as a reliable drink that would save lives from such frequent crises.

(For more information, please read the blog " The History of Koji Amazake ".)

Effect and efficacy of rice koji amazake

Rice malt amazake is rich in essential amino acids, glucose, vitamin B group, etc. It is also called a "drinkable intravenous drip" because of almost the same ingredients as an intravenous drip. In addition, kojic acid is expected to have a whitening effect, so it has recently been attracting attention as a “drinkable beauty essence”.


Essential amino acids

Amazake is a well-balanced intake of nine types of amino acids that cannot be synthesized in the body. By taking these, it leads to various effects such as fatigue recovery, immunity improvement, beautiful skin effect and sound sleep effect. In addition, amino acids are particularly easy to lose through sweat, so it is especially recommended in the summer.



Nutrients that serve as an energy source to move the brain and body, do not need to be digested in the body, and directly become energy for the brain and body. As a result, brain activation and fatigue recovery effects can be obtained.


Vitamin B group

It is an essential nutrient for our bodies involved in protein synthesis and lipid metabolism, and amazake is rich in these nutrients. You can expect it to help you with your diet and have a beautiful skin effect. Amazake, in particular, has an absorption rate of over 90%.

In addition, brown rice amazake contains more abundant vitamins, so if you want to supplement vitamin B group, brown rice amazake is also recommended.


In addition, amazake contains various nutrients.

(For more information, please read the blog " Nutrition contained in Amazake ".)