Kisvin

Réserve Koshu

9.21 ratings
-no pro ratings
Yamanashi, Japan
Koshu
Top Notes For
Freddy R. Troya

Kisvin — Koshu Réserve 2021
Yamanashi, Japan 🇯🇵

Overview
100% Koshu from Yamanashi, given an unusually serious treatment through late harvesting and barrel aging. The result moves well beyond the typically delicate, light-bodied expression of Koshu, delivering greater concentration, texture, and personality while preserving the grape’s natural freshness.

Aromas & Flavors
Ripe pear, citrus, yellow apple, and subtle honey unfold alongside gentle oak spice and vanilla. The fruit feels concentrated yet refined, with the barrel influence adding complexity rather than masking Koshu’s delicate character.

Mouthfeel
Medium-bodied and noticeably creamier than typical Koshu, with additional weight and texture across the palate. Fresh acidity keeps everything composed, leading to a clean, structured, and persistent finish.

Food Pairings
Sushi, sashimi, grilled scallops, miso-glazed fish, tempura, roasted poultry, or richer Japanese seafood preparations.

Verdict
A premium, intellectual Koshu, simple as that. Where many examples emphasize delicacy and subtlety, this has genuine presence and character. The added weight and oak influence make it a fascinating demonstration of how serious Koshu can become without sacrificing its identity.

Did You Know?
Koshu is Japan’s signature native wine grape and is particularly associated with Yamanashi, its historic heartland. Its naturally subtle character makes richer interpretations like this Réserve especially unusual, showing an entirely different dimension of the variety.

🍷 Personal Pick
This is Koshu with some muscle—and I loved it. The pear, honey, citrus, creamy texture, and restrained oak give it far more personality and weight than expected, yet it remains unmistakably refined. Unfortunately, it’s extremely difficult to find in the U.S.; if I see another bottle, I’m not leaving it behind.

Kisvin — Koshu Réserve 2021
Yamanashi, Japan 🇯🇵

Overview
100% Koshu from Yamanashi, given an unusually serious treatment through late harvesting and barrel aging. The result moves well beyond the typically delicate, light-bodied expression of Koshu, delivering greater concentration, texture, and personality while preserving the grape’s natural freshness.

Aromas & Flavors
Ripe pear, citrus, yellow apple, and subtle honey unfold alongside gentle oak spice and vanilla. The fruit feels concentrated yet refined, with the barrel influence adding complexity rather than masking Koshu’s delicate character.

Mouthfeel
Medium-bodied and noticeably creamier than typical Koshu, with additional weight and texture across the palate. Fresh acidity keeps everything composed, leading to a clean, structured, and persistent finish.

Food Pairings
Sushi, sashimi, grilled scallops, miso-glazed fish, tempura, roasted poultry, or richer Japanese seafood preparations.

Verdict
A premium, intellectual Koshu, simple as that. Where many examples emphasize delicacy and subtlety, this has genuine presence and character. The added weight and oak influence make it a fascinating demonstration of how serious Koshu can become without sacrificing its identity.

Did You Know?
Koshu is Japan’s signature native wine grape and is particularly associated with Yamanashi, its historic heartland. Its naturally subtle character makes richer interpretations like this Réserve especially unusual, showing an entirely different dimension of the variety.

🍷 Personal Pick
This is Koshu with some muscle—and I loved it. The pear, honey, citrus, creamy texture, and restrained oak give it far more personality and weight than expected, yet it remains unmistakably refined. Unfortunately, it’s extremely difficult to find in the U.S.; if I see another bottle, I’m not leaving it behind.

Sep 10th, 2026