Avoid storing sake in places where the temperature is high or changes rapidly. With the exception of sake that has not been heat-treated and requires refrigeration, we recommend storing ordinary sake in a cool, dark place at 18°C or below. For higher quality sake, an environment of between 1°C and 5°C is ideal if you are looking for less change in quality.
UV rays from sunlight and fluorescent lights can cause deterioration of sake. If it is difficult to find a dark place to store sake, wrap it in paper or cloth to avoid UV rays.
Ordinary sake can be stored in a cool, dark place at 18°C or below for up to one year, or for two to three months after opening the bottle. For vintage sake, the appropriate storage period depends on how it was made.
