Iwanai Shuzo
| Years Active | Unknown – present |
|---|---|
| Region | Kanto |
| Country | Japan |
| Japanese Name | 岩内酒造 |
| Prefecture | Chiba |
| Status | Operating |
| Owner | Family |
| Water Source | Local well water (soft water) |
| Rice Varieties | Gohyakumangoku; Fusamai |
| Toji School | Unknown |
| Production Size | Small |
| Key Brands | Boso no Taka |
| Famous Brands | Junmai; Honjozo; Futsu-shu |
| Website | Unknown |
| Coordinates | 35.1129, 140.0993 |
About Iwanai Shuzo
Small brewery on the Boso Peninsula in Kamogawa, serving the southern Chiba coast region with local sake.