Kellerei Kaltern Caldaro is a co-operative with approximately 440 members with a vineyard area of over 300 hectares. Due to steep slopes and varying sizes of individual vineyard plots, the vineyards are almost entirely worked by hand. Vineyards around Lake Kaltern are very small in size and most of the winemakers in the region have less than one hectare of land, for a small winemaker it is virtually impossible to make and market their own wine so the co-operative of Kaltern was set up in 1906 with the goal of producing high quality wines. In 2018, Kellerei Kaltern became the first Italian wine producer to be awarded Fair`n Green`s certificate for sustainable viticulture. Fair`n Green covers both environmental and social sustainability issues.