Joško Gravner is a leading winemaker in the Collio Goriziano region, on the border of Northeastern Italy and Slovenia. The winery is known for its unique, long-lasting wines, produced by ancient methods. Own vineyards cover 32 hectares. The focus is on the Ribolla variety, which accounts for 85 percent of the plantations. The varieties Pignolo, Merlot, Cabernet Franc are also grown. Production in the winery follows the lunar phases - for example, wines are bottled only during the waning moon. Large amphorae are used for fermentation, following the ancient techniques of winemaking. White wines make up about 85% of the estate's production. The wines are aged in oak barrels of various sizes for many years, so the release dates for most wines are 7 to 10 years or more from the date of harvest.