[Suitable Locations and Crops]
Grape cultivation in Kosaka Town, Akita Prefecture, began in the Tokito district in Showa 63 (1988). The area features volcanic ash soil deposited by the massive eruption of Lake Towada in ancient times, providing well-drained conditions that made it ideal for growing grapes.The growers cultivate “mountain grape” varieties, which are disease-resistant and can thrive even in cool climates. Furthermore, growing these grapes on their own roots—a practice that capitalizes on the varieties’ natural characteristics (whereas grafting is the norm)—is considered a miraculous cultivation method.

Kosaka Nanataki Winery was established in 2017 in the Nanataki district, located near the Tokito district vineyards.
The winery was named after the beautiful Nanataki waterfall visible right in front of it, which is also depicted as the winery’s symbol.

[Mountain Grape Varieties]
Mountain grape varieties were developed over a period of approximately 50 years by the late Haruo Sawato (1916–2001, died at age 85). They are characterized by the rich pigments (polyphenols) and refreshing acidity typical of mountain grapes.

By crossing native Japanese wild grapes with foreign wild grape varieties, these varieties have been adapted to make the Japanese wild grape species more suitable for winemaking.

[Winemaking]
In Kosaka Town, we have been dedicated to establishing the region as a production area specializing in wild grape-derived varieties (native to Japan).By leveraging the rich pigments and refreshing acidity of these mountain grape varieties, we produce wines that pursue originality—ranging from full-bodied wines to refreshing styles and fruity, sweet varieties.

Our red wines include “Wine Grand” and “Kogōshi.”and “Iwakiyama Budou,” which are characterized by refreshing acidity and rich polyphenols.

Our rosé wine is made from the luxurious free-run juice of “Wine Grand,” carefully fermented at low temperatures to create a fresh, subtly sweet rosé.
Kosaka Nanataki Winery also offers a variety of seasonal products, including fruity white wines made from Akita-grown Niagara and Stuben grapes, as well as Christmas Nouveau and Summer Red.

[Akita Inu Wine]

Developed in February 2022 with the goal of becoming a representative souvenir of Akita Prefecture.

Three varieties are available: a slightly sweet rosé made from “Wine Grand,” a wild grape variety native to Kosaka Town; a red wine characterized by its refreshing acidity; and a fruity, sweet white wine made from Akita Prefecture’s “Niagara” grapes. Each is packaged in a charming design featuring an Akita dog.

https://kosaka-7falls-winery.com/post-2930/