The Koshu grape is more than Japan’s most iconic white wine varietal—it’s a symbol of the country’s agricultural history and evolving wine culture. Believed to have arrived from the Silk Road over 1,000 years ago, Koshu has adapted beautifully to the volcanic soils and mountain climate of Yamanashi.
At Winery Tours Japan, our Koshu-focused Japanese winery tours bring you deep into the world of this native grape. You’ll visit vineyards where Koshu is cultivated with precision and respect, and learn about the grape’s unique structure—thick skins, high acidity, and subtle aromas.
Wineries on the tour showcase a range of Koshu expressions, from stainless steel-fermented dry whites to oak-aged styles with depth and aging potential. You’ll taste how elevation, soil composition, and vinification choices affect the final product—while enjoying views of Mount Fuji or traditional kura-style cellars.
This tour is ideal for travelers interested in the story behind the grape, and in understanding why Koshu has gained international attention in the world of wine.
Explore the full experience and discover Koshu’s legacy with a private customized Yamanashi winery tour.