Koyama Shuzo (Reihaku)
| Years Active | 1804 – present |
|---|---|
| Region | Kyushu |
| Country | Japan |
| Japanese Name | 小山酒造 (冷白) |
| Prefecture | Kumamoto |
| Status | Operating |
| Owner | Family |
| Water Source | Kikuchi River system underground water (filtered through Aso volcanic rock) |
| Rice Varieties | Yamadanishiki; Hana Nishiki; Kumamoto local rice |
| Toji School | Kumamoto Toji |
| Production Size | Small |
| Key Brands | Reihaku; Yamaga no Sakura |
| Famous Brands | Junmai; Junmai Ginjo; Junmai Daiginjo; Honjozo; Akasake |
| Website | Unknown |
| Coordinates | 33.015, 130.6875 |
About Koyama Shuzo (Reihaku)
Kumamoto developed the famous Association No. 9 yeast (also called Kumamoto yeast) which revolutionized ginjo brewing nationwide. Aso volcanic terrain gives Kumamoto exceptional groundwater.