Shimaoka Shuzo
| Years Active | 1862 – present |
|---|---|
| Region | Kanto |
| Country | Japan |
| Japanese Name | 島岡酒造 |
| Prefecture | Gunma |
| Status | Operating |
| Owner | Family |
| Water Source | Underground water from the Watarase River system |
| Rice Varieties | Gohyakumangoku; Yamadanishiki; Gunma-grown rice |
| Toji School | In-house |
| Production Size | Small |
| Key Brands | Gunma Izumi; Ashikaga no Murasaki |
| Famous Brands | Junmai; Junmai Ginjo; Junmai Daiginjo; Honjozo |
| Website | Unknown |
| Coordinates | 36.3781, 139.4178 |
About Shimaoka Shuzo
Traditional small Gunma brewery. Eastern Gunma’s Watarase River area provides good brewing water. Maintains artisanal scale production.