The Katsunuma Winery Blending Workshop takes place at a boutique winery in the Katsunuma district of Koshu City, arranged through the Koshu City Tourism Association, and lets participants move beyond tasting into the technical side of winemaking. The 1.5-to-2-hour session opens with a guided walkthrough of the winery's pressing and fermentation areas, explaining how Koshu grapes are handled differently from the region's Muscat Bailey A red grapes, before moving to a hands-on blending session where participants mix small samples of base wines from both varieties in different ratios to create their own personal blend, guided by the winemaker on how ratio changes affect sweetness, acidity, and color. The final blend each participant settles on is bottled and labeled with their own recipe to take home, turning the session into a tangible souvenir as much as an educational one. The format is a wine-focused workshop rather than a paired meal, so no food course is included. The ¥5,000 fee covers the winery walkthrough and blending session with one bottle to take home; an ¥8,000 tier includes a second bottle and a small cheese pairing plate. Reservations should be made at least three days ahead given the small, workshop-style group size, and October–November during the harvest and pressing season offers the most active winery visit. Because the session involves alcohol, participants must be of Japan's legal drinking age of 20, and a non-alcoholic observation-only option can sometimes be arranged with advance notice.
What is included
- Guided winery walkthrough explaining the pressing and fermentation process
- Hands-on blending session mixing Koshu and Muscat Bailey A base wines
- Bottled take-home blend labeled with the participant's own recipe
Good to know
- Operator
- Katsunuma-area boutique winery (reserve at least 3 days ahead via Koshu City Tourism Association, 0553-32-2111)
Location
Kamiiwakubo, Koshu, Yamanashi 409-1313
35.6547, 138.7298 View on map
Highlights
- Guided walkthrough of an active winery's pressing and fermentation process
- Hands-on blending session mixing Koshu and Muscat Bailey A base wines
- Personally blended bottle, labeled with the participant's own recipe, to take home
- Most active during the October–November harvest and pressing season
Tips for visiting
- Reserve at least three days ahead through the Koshu City Tourism Association
- Visit during October–November to see the winery in active harvest and pressing production
- Bring a valid ID, since the workshop requires guests to be of Japan's legal drinking age of 20
- Ask in advance about a non-alcoholic observation-only option if not tasting or blending wine
- Consider the higher tier if wanting a cheese pairing alongside the blending session
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Frequently asked questions
Do participants actually blend their own wine?
Yes, participants mix small samples of Koshu and Muscat Bailey A base wines in different ratios under the winemaker's guidance to create a personal blend.
Is a bottle included to take home?
Yes, the final blend each participant settles on is bottled and labeled with their own recipe.
When is the best time to visit?
October–November during the harvest and pressing season offers the most active winery visit, though the workshop runs year-round.
Can non-drinkers join?
A non-alcoholic observation-only option can sometimes be arranged with advance notice through the Koshu City Tourism Association.