Cabernet cortis is a blue PIWI (pilzwiderstandsfähig) variety that is a cross between Cabernet Sauvignon and Solaris created in 1982 at the Statliches Weinbauinstitut in Freiburg, Germany. Its original name, due to its origin, was Freiburg 437-82 R. Weather it is classed as a hybrid grape or “vinis vinifera” (common grape), is somewhat disputed, but it is formally recognized as the latter.
Except for in Sweden, it is also grown in Denmark, Britain, Germany, Switzerland and Italy.
Its clusters are heavy, the grapes mid-sized to large. The variety is resistant to downy mildew, but sensitive to powdery mildew. The grapes ripen relatively early. It produces tasty, phenolic wines with distinct tannins. Herbal tones and green notes are characteristics, the taste is reminiscent of that of Cabernet Sauvignon.