About this wine
Hiyori Katsunuma Osade Koshu is the flagship white wine of Hiyori Winery, made exclusively from 100% Koshu grapes grown in the prized Osade (Kosada) district of Katsunuma, Yamanashi — a first-class single vineyard renowned for exceptional sunlight and excellent natural drainage. Farmed with minimal use of pesticides and herbicides, the grapes are hand-selected and fermented at low temperature to preserve Koshu's delicate, pellucid character. Unlike many Koshu wines released as new-vintage whites, this cuvee is aged in tank until its acidity mellows and its overall balance matures before bottling and release, with no oak contact and only minimal sulfite addition. The result is a pure, precise white with pellucid citrus and pear aromas, gentle fruitiness, and a distinctive, food-friendly bitterness and astringency on the finish.
A refined, easy-drinking introduction to Japan's native Koshu grape — clean citrus notes with just enough character to be memorable.
Sommelier's Note
"This is Hiyori Winery's clearest statement of place — the Osade vineyard's sun and drainage speak directly through the glass. If you want to understand why single-vineyard Koshu deserves serious attention, start here."
Food Pairings
A natural match for Japanese cuisine — sashimi and other delicate white fish, tempura (shrimp, vegetables, or whitefish), grilled chicken, and light Chinese-style dishes with simple seasoning. The subtle bitterness on the finish also stands up well to dishes with a touch of umami depth.
When to drink it
Casual dinners with Japanese food, a thoughtful gift for wine-curious friends, or an introduction to single-vineyard Japanese wine.
Specs
- Grape Varieties
- Koshu
- Style
- White
- Alcohol
- 12%
- Price Range
- ¥3,500-4,000
Terroir & Winemaking
100% Koshu, hand-harvested from the single vineyard of Osade in Katsunuma, a first-class site prized for its abundant sunlight and excellent drainage. Grapes are grown with minimal pesticide and herbicide use. Fermented at low, carefully controlled temperatures to protect the variety's delicate aromatics, then aged in tank (no oak) until the acidity softens and the wine reaches full balance before release. Minimal sulfite addition. ABV approximately 12%.
Frequently Asked Questions
- What makes Osade Koshu different from a regular Katsunuma Koshu?
- It is made from 100% Koshu grapes sourced exclusively from the single Osade vineyard, a first-class site known for abundant sunlight and excellent drainage, and it is aged until the acidity mellows before release rather than sold as a new-vintage wine.
- What does it taste like?
- Pellucid aromas of Japanese citrus and pear lead into a gentle, fruit-driven palate with crisp acidity and a distinctive subtle bitterness and astringency on the finish.
- What food should I pair it with?
- It pairs beautifully with Japanese cuisine — sashimi, tempura, grilled chicken, and dishes built on dashi — thanks to its bright acidity and food-friendly finish.
- Is this wine oak-aged?
- No. It is fermented at low temperature and aged in tank without oak contact, so the focus stays on the pure varietal character of Koshu and the Osade terroir.
- What is the alcohol content?
- Approximately 12% ABV, in line with most dry Koshu wines from Katsunuma.
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