The Cooperative Winery (which only in South Tyrol is called Kellerei Kaltern) is located in the municipality of Kaltern (Caldaro) in the Italian wine-growing area of South Tyrol (Trentino-South Tyrol region). It resulted from the merger of the original four Kalterer Winery cooperatives. Already in 1986 the Erste Kellerei and Neue Kellerei (founded in 1900 and 1925 respectively) merged to form Erste+Neue. In 1992 the Bauernkellerei merged with the Jubiläumskellerei (founded in 1906 and 1908 respectively) to form the Cantina Kaltern. The last step towards the joint winery was taken in 2016. In the 1980s, rigorous measures were taken to improve quality, including a reduction in yield to an average of 75 hl/ha. Today, around 800 members cultivate a total of 480 hectares of vineyards in almost all locations around Lake Kaltern.
The vineyards are cultivated by the members according to strict guidelines regarding pruning, fertilization and harvesting. A small group is engaged in biodynamic viticulture and markets these wines under their own label "Solos". 47% of the white wine varietiesPinot Blanc, Gewürztraminer, Chardonnay, Sauvignon Blanc,Pinot Gris, Müller-Thurgau, Goldmuskateller, Kerner and Riesling are cultivated and processed, and 53% of the red wine varieties Vernatsch (about 20% of the area), Lagrein, Rosenmuskateller,Pinot Noir, Cabernet Sauvignon and Merlot.
White wines to be drunk young are fermented and matured at a controlled temperature in steel tanks, whereas full-bodied white wines are fermented and matured in barriques. The fruity Kalterersee undergoes only a week-long maceration at a relatively cool temperature and is aged for several months in stainless steel on the fine yeast. All other red wines are aged exclusively in wooden barrels. The best batches ferment spontaneously in wooden fermentation vats. Biological acid reduction and storage take place in barriques. These wines are often bottled unfiltered. Special small sites, wineries and farms are marked with the site name. The Cantina Kaltern also has two small farms, which are self-contained wineries. Their grapes are vinified separately and the wines are marketed under the labels "Castel Giovanelli" and "Pfarrhof". The Baron di Pauli brand is also produced by the Cantina Kaltern. The large product range includes various wines from the DOC areas of Lake Kaltern and South Tyrol. Around 3.5 million bottles of wine are produced annually.
The Cantina Kaltern's winecenter, located directly on the South Tyrolean Wine Route, is a tasting room, gallery, event location and salesroom. Here visitors can taste wines "365 days a year". In addition, South Tyrolean specialities such as Schüttelbrot, honey, bacon and apple juice as well as books and wine accessories are also sold.