Miso is a traditional food that has supported
the dietary life of the Japanese people
for more than 1,300 years.
While it is a basic seasoning that represents Japan, it is also a fermented food created by the activity of microorganisms.
Miso changes color over time and according to the temperature. This phenomenon occurs when the raw ingredients are broken down by the koji and is due to the reaction between sugar from the rice, and protein and amino acids from the soybeans. This also causes the flavor to change. This phenomenon is the result of the ingredients in the miso reacting with each other, and can occur even in an unopened pack of miso.
To preserve the delicious flavor of miso, please store it in the refrigerator or freezer.*
* Miso does not freeze even when stored in the freezer.
* It may become slightly stiff, but can be used directly from the freezer.
Once a miso pack has been opened, it should be tightly wrapped with plastic wrap to prevent contact with air which may cause drying and oxidation.