Koshu Wine: Yamanashi's Gentle White Wine Tradition

Discover Koshu, Japan's native white wine grape from Yamanashi: its history, delicate flavors, food pairings and how to plan a visit to Katsunuma.

Published October 17, 2026 at 7:51 PM JST | By Tokyo Paul

Quick answer: Koshu is Japan's native white wine grape, grown mainly in Yamanashi Prefecture in the shadow of Mount Fuji. It makes pale, citrusy, gently dry wines that pair beautifully with sushi, tempura, tofu and other delicate Japanese dishes.

Why Koshu Is Getting Attention

Japanese food has long enjoyed a worldwide following, and now the wine made to go with it is starting to share the spotlight. Koshu, a pale and gentle white wine grown mainly in Yamanashi Prefecture west of Tokyo, has become one of the most talked-about bottles among travelers and wine lovers who want something distinctly Japanese. Its calm, citrusy character fits the delicate flavors of sushi, tempura and tofu in a way that big, heavy wines often cannot. In this guide, we look at where Koshu comes from, how it is grown, what it tastes like, what to eat with it, and how to visit the wine country around Katsunuma.

Koshu is a grape variety, and it is also the name people use for the wines made from it. The word is tied to the old name of Yamanashi, and it also appears in the name of the city of Koshu, which includes the Katsunuma district at the heart of the wine area. That local pride shows on every label, because this is a grape that belongs to one corner of Japan more than anywhere else. Understanding that connection makes a glass of Koshu feel like a small taste of the place itself.

A Grape With a Long Story

Koshu has been grown in Japan for well over a thousand years. Researchers believe the vine traveled along the Silk Road through China and arrived in Japan many centuries ago, and DNA studies suggest it carries both European and East Asian ancestry. A much-loved local tradition credits a monk named Gyoki, who is said to have discovered a grape vine near Daizenji Temple in the Nara period. Whether or not every detail of the legend is exact, Daizenji is still strongly linked with the story of Koshu grapes in Yamanashi.

For most of that long history, Koshu was mainly a table grape, and farmers made simple wine at home. Modern winemaking began in the Meiji era. In 1877 a company was founded in Katsunuma, and two young men, Takano Masanari and Tsuchiya Ryuken, were sent to France to study grape growing and winemaking. They came home with detailed notes and shared their knowledge with local people, which helped later wineries take root in the district. That quiet passing of skills is one reason Katsunuma is often called the cradle of Japanese wine.

A major milestone came in 2010, when the International Organisation of Vine and Wine registered Koshu as a wine grape variety. This meant the name could appear on European wine labels as a grape, and it was the first time a variety native to Japan received that recognition. In 2013, Yamanashi also became Japan's first wine geographical indication, which sets standards for grape variety, quality and production method. Together these steps helped Koshu gain a more confident place on restaurant lists at home and abroad.

Vineyards in Fuji's Neighborhood

Yamanashi sits in a basin ringed by mountains, with Mount Fuji to the south. The Kofu Basin is one of the sunniest and driest parts of Japan, with more than 2,200 hours of sunshine in a typical year, and the big gap between warm days and cool nights helps grapes ripen with fresh acidity. Most vineyards stand on slopes between about 200 and 700 meters above sea level. These conditions suit Koshu, which has a thick pinkish skin and does well in a place where summer rain can be a challenge for other grapes.

One sight that surprises first-time visitors is the way many vines are trained. Traditionally Koshu is grown on overhead pergolas shaped like a big X, so that clusters hang down beneath a leafy canopy. This keeps air moving around the fruit in humid weather. Some growers cover bunches with small paper or plastic caps to protect them from rain, and more recently some producers have begun trying vertical trellising systems that are common in Europe. Seeing both styles in one valley is a lovely reminder that old and new methods live side by side here.

Tasting Notes and Food Pairings

Koshu is known for subtlety. The wines are usually pale straw in color, with soft aromas of citrus, white peach and sometimes jasmine or herbs. The palate tends to be clean and light, with gentle acidity and an alcohol level that often sits around 11 to 11.5 percent. If you usually reach for bold, buttery whites, Koshu may feel quiet at first. Give it a few sips, and its refreshing, almost tea-like restraint becomes the whole charm.

Producers make several styles from the same grape. A fresh, unoaked still wine is the classic starting point. Sur lie wines are left resting on their fine sediment before bottling, which adds a little texture and richness without losing the delicate fruit. You may also find sparkling Koshu, barrel-aged versions and even orange-style wines made with skin contact. Because styles differ, tasting a small flight is a good way to see how much range one grape can offer.

Koshu was shaped with Japanese meals in mind, and it is happiest at the table. Sushi and sashimi are natural partners, since the wine does not overpower fresh fish. Tempura, grilled seafood, shellfish, tofu and vegetable dishes also work well, as do light salads with a citrus dressing. Many people enjoy it with simple dishes seasoned with a little salt, yuzu or sudachi, because the wine echoes those bright notes.

It can also be a refreshing choice with more everyday foods. Chilled Koshu goes nicely beside a plate of grilled chicken with lemon, dumplings, or a mild cheese board. If a dish is very spicy or heavily sauced, a fruitier or sparkling style can be a better match. As with any wine, the best advice is to try a few combinations and see which one feels like a happy surprise.

Planning a Visit to Katsunuma

The wine district is reachable from Tokyo in roughly a couple of hours by train, and the area around JR Katsunuma Budosato Station is the usual base for visitors. Many wineries cluster within a few kilometers of each other, but distances can be bigger than they look on a map, so a local taxi, a bus, or a bike rental can make the day easier. Some wineries have tasting counters you can walk up to, while others offer guided tours that need advance booking, so it is wise to check each winery's own website before you go. A few tours also set an age limit, and some wineries close on a regular weekday.

One important point: Japan takes drink-driving very seriously, so please do not plan to drive between tastings. Use public transport, a taxi or a hired driver, and keep a bottle of water handy. Autumn is a popular time when grapes are being harvested, and spring brings fresh green vines, but the region can be pleasant in any season. Bring comfortable shoes for walking between vineyards, and consider buying a bottle or two to carry home, since many shops will wrap them securely.

Quick Takeaways

Koshu is Japan's native white wine grape, grown above all in Yamanashi, where long sunny days and cool nights give it a soft, citrusy personality. It has a history that runs from ancient legend to a modern winemaking story that began in Katsunuma in the 1870s, and it earned international recognition in 2010. At the table it loves sushi, tempura and other gentle flavors, and in the countryside it rewards a relaxed day of tastings and views toward Fuji. Whether you open a bottle at home or travel to the vineyards, Koshu is a friendly introduction to Japan's wine culture. Pour a glass, take your time, and enjoy a lighter way to drink in Japan.

Frequently Asked Questions

What does Koshu wine taste like?

Koshu is usually pale in color with soft notes of citrus, white peach and sometimes jasmine. It tends to be light and clean, with gentle acidity and an alcohol level around 11 to 11.5 percent, so it is easy to enjoy with a meal.

Where is Koshu wine made?

Most Koshu is grown in Yamanashi Prefecture, west of Tokyo and near Mount Fuji. The Katsunuma district in Koshu City is the best known wine area, and it is often called the cradle of Japanese wine, with many wineries to visit.

What food goes well with Koshu?

Koshu pairs well with sushi, sashimi, tempura, grilled seafood, tofu and vegetable dishes. Its delicate flavor does not overpower fish, and it also suits dishes brightened with citrus such as yuzu or lemon, as well as light salads.

Keep Exploring

More guides from Tokyo Paul: Sencha and Gyokuro: Japan's Shaded and Steamed Green Teas, Shizuoka Tea Country: Green Fields Below Mount Fuji and Kyaraben: The Playful Art of Character Bento.