This Sake is made with very hard water, using an old-style Yamahai method.It has a strong and deep taste with a sharp tang. Drink it slowly from a small cup with food.
 
To commemorate its 300th anniversary, Iwase Brewery has introduced the i240 series with a new label. The “i” stands for Iwanoi, and “240” represents the hardness of the water used. This series uses hard water, which is rich in minerals, significantly affecting the sake’s flavor, as 80% of sake is water. In Japan, most water is soft, while Europe and North America have more hard water. For comparison, Evian has a hardness of 304, making it ultra-hard water, while South Alps Natural Water has a hardness of 30, making it soft water. The water used for Iwanoi’s sake has a hardness of 240, providing a high mineral content.This unique flavor, unlike any other sake, is offered using the same brewing method but with different sake rice varieties.