Kyokai No. 9 yeast

Kyokai No. 9 yeast is one of the yeasts used in sake brewing, and is also known by the familiar name "Kyokai 9." It was developed at the Kumamoto Prefecture Sake Research Institute (熊本県酒造研究所) in Kumamoto Prefecture, and is known for being particularly well suited to producing Ginjo sake. During fermentation, it brings out a fruity, elegant aroma and gives the sake a rich flavor. It is favored by many sake breweries and is associated with well-known sake such as Koro. Using this yeast, brewers can expect to produce Ginjo sake with a balance of clear flavor and pronounced aroma.