Jukusei (aging)
熟成じゅくせいJukusei (aging, or maturation) refers to the process in which sake is stored for a certain period of time. In this process, pasteurized sake is stored in tanks or bottles, and its flavor and aroma change gradually over time. A characteristic change is that the aroma typical of freshly brewed sake softens, and the taste becomes mellow and easier to drink. Through aging, the components contained in the sake interact with one another, producing greater depth, richness, and more complex umami. Aging is an important step in bringing out the appeal of sake, and when carried out in a suitable environment, it improves the quality of the sake.