Which grape variety is traditionally known for making sweet dessert wines in Germany?

Riesling is the grape variety traditionally associated with the production of sweet dessert wines in Germany. It thrives in the country's cool climate, which allows for a long growing season that results in grapes with high acidity and concentrated sweetness. Riesling is versatile, enabling winemakers to craft a range of styles, from dry to exquisitely sweet wines.

In Germany, the sweet dessert wines made from Riesling are often the result of late harvesting or specific processes such as noble rot (Botrytis cinerea), which further intensifies the sweetness and flavor complexity. This tradition highlights Riesling's capability to express terroir and varietal character, making it a staple for dessert wines in German wine regions, especially those along the Rhine River.

The other grape varieties mentioned do not hold the same prominence in German dessert wine production. Cabernet Franc is primarily grown in other regions, often known for dry red wines. Grenache, while producing some sweet and fortified wines in various areas, is not specifically linked to German traditions. Pinot Noir, typically associated with dry red wines and some sparkling wines, does not have a significant role in Germany's dessert wine landscape, particularly when compared to the iconic Riesling.