ProducerKoshu

Kai Winery

甲斐ワイナリー株式会社

16 generations of history, self-grown Koshu and rare Barbera.

Established in 1986 in the Enzan (former Shioyama) district of Koshu City, Yamanashi, Kai Winery traces its roots to a sake brewery founded in 1834. The winery operates on a historic estate whose main building, wine cellar, and café are designated as nationally registered tangible cultural properties. True to its motto of careful, small-scale winemaking, Kai Winery handles everything in-house — from growing its own Koshu, Merlot, and rare-for-Japan Barbera grapes to fermentation and bottling — producing roughly 30,000 bottles a year. Visitors can tour the historic cellar and taste wines at the on-site cafe, 'Wine Cafe Koko,' set in a renovated Edo-period earthen warehouse.

kaiwinery.com/

Cuvées

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Who Is This For?

Ideal for those who appreciate the intersection of Japanese history, traditional cultural-property architecture, and small-batch, food-friendly wines made entirely in-house.

Frequently Asked Questions

Does Kai Winery grow its own grapes and make its own wine?
Yes. Kai Winery is a fully self-contained producer — it cultivates its own Koshu, Merlot, and Barbera grapes and handles fermentation and bottling on-site, rather than relying on contract winemaking.
Can I visit the winery for a tour?
Yes, the winery offers free tours of its historic, nationally registered cultural-property cellar and vineyards, followed by tastings.
What kind of wine does Kai Winery specialize in?
The winery focuses on wines that complement Japanese cuisine, centered on Koshu, Merlot, and the rare-for-Japan Barbera variety.
Is there a place to eat at the winery?
Yes, the on-site 'Wine Cafe Koko' serves lunch, snacks, and homemade cakes in a renovated Edo-period earthen warehouse.