Kuratsuki kobo (brewery-resident yeast)

Kuratsuki kobo (brewery-resident yeast) refers to yeast that lives naturally within a particular sake brewery. These yeasts have been cultivated in the brewery over many years and contribute to its distinctive flavor and character. Brewery-resident yeast is generally adapted to the characteristics of its brewery, and because its quality and fermentation traits are shaped by the local climate and the brewery's style of sake making, each brewery has its own individual profile. For this reason, sake made with brewery-resident yeast is marked by flavors and aromas specific to that brewery, and it is highly regarded by enthusiasts.