Koshi no Kanbai “Sai”
Koshi no Kanbai “Sai”
Niigata sake at its best—crisp, clean, with a satisfying umami imprint

Blue River

A modern expression of the “crisp and clear” Niigata sake style, but with an umami imprint that makes it undeniably Koshi no Kanbai. Elegantly smooth, subtly aromatic, with a satisfying finish.

Niigata Prefecture


Ishimoto Brewing Company

Ishimoto Brewing Company

Niigata Prefecture


Koshi no Kanbai is one of the most famous names in the sake world. An uncompromising focus on excellence over generations led to a type of clean, dry sake that came to be known as “Niigata style.” Koshi no Kanbai sakes have both balance and flavor depth—it’s as though every single molecule is immaculately in place.

Koshi no Kanbai “Sai”

Technical Specifications

Classification: Junmai Ginjo
Rice variety: 500 Mangoku, Yamadanishiki
Yeast: Niigata Ginjo
Brewing method: Sokujo


polishing ratio







Serving recommendations

Goes well with umami-rich seafood such as scallops, mirugai and ika. But pairable across a wide spectrum of sake-friendly cooking. Best served at 50–60 degrees.

You might also like…

Share Koshi no Kanbai “Sai” with friends!

    Back to top