Since its establishment in 1868, the Winzergenossenschaft Mayschoss-Altenahr is not only the oldest winery cooperative in the world, but also one of the most innovative producers in German red wine vinification. It started as a means for the small boutique producers of the Ahr Valley to cope with hard times and today it works with over 400 member growers and a total 145 vineyard hectares. The Winzergenossenschaft Mayschoss-Altenahr proudly produces around 1.3 million bottles of premier wine a year and can cellar 1.8 million liters of wine in its historic cellar.
The Winzergenossenschaft Mayschoss-Altenahr grows mainly the spätburgunder (/shpāt-bur-gūn-dur/) (pinot noir) grape varietal with about 60% of its plantings. Its next largest planting is riesling with about 20%. Other important varietals for the Winzergenossenschaft Mayschoss-Altenahr include frühburgunder (pinot madeleine), grauburgunder (pinot gris), portugieser, domina and müller-thurgau (rivaner).
The Winzergenossenschaft Mayschoss-Altenahr operates in the German wine region called the Ahr Valley around the two villages that give it its name, Mayschoss and Altenahr, with its cellar and main facilities being in Mayschoss. The Winzergenossenschaft Mayschoss-Altenahr is a leading winery in Germany with numerous prestigious awards as recent as being ranked 8th in the top 100 German wineries in 2013 by the German national agency DLG (Deutsche Landwirtschafts-Gesellschaft).