What is the recommended storage temperature for Koshu?

Koshu, which refers to sake that has been aged for a significant period, benefits from careful storage to maintain its unique flavors and aromas. The recommended storage temperature for Koshu is cool, ideally around refrigeration temperatures, which help preserve the delicate characteristics that develop through aging. Storing Koshu at cooler temperatures slows down any unwanted chemical reactions and oxidation, which can alter its taste profile negatively.

Keeping Koshu in a cool environment also helps in maintaining its essential qualities and allows the drinker to enjoy the complexities it offers when served. While sake can certainly be served chilled, proper storage at controlled, cool temperatures ensures the sake remains in optimal condition until it is ready to be enjoyed.

Room temperature or warmer storage can lead to a rapid deterioration of flavor, and very cold storage at temperatures below freezing can cause the sake to freeze, which is not ideal for preserving its integrity.