Iwase Shuzo
| Years Active | 1723 – present |
|---|---|
| Region | Kanto |
| Country | Japan |
| Japanese Name | 岩瀬酒造 |
| Prefecture | Chiba |
| Status | Operating |
| Owner | Family |
| Water Source | Natural spring water from the Boso Peninsula hills |
| Rice Varieties | Gohyakumangoku; Fusakogane; Chiba local rice |
| Toji School | In-house |
| Production Size | Small |
| Key Brands | Iwanoido; Boso no Homare |
| Famous Brands | Junmai; Junmai Ginjo; Honjozo; Tokubetsu Junmai |
| Website | Unknown |
| Coordinates | 34.9556, 139.9556 |
About Iwase Shuzo
One of the oldest breweries on the Boso Peninsula in southern Chiba. Mild maritime climate of the Awa coast influences flavor development. Iwanoido brand references a legendary local well.