Willi Haag produces Riesling from the Mosel, Germany's most celebrated region for the variety. The winery's focus is the Brauneberger Juffer-Sonnenuhr vineyard, a south-facing slope that yields wines across the German classification spectrum—from dry to intensely sweet. The Brauneberger Juffer-Sonnenuhr Riesling Beerenauslese, a botrytized dessert wine, has earned particular recognition from Wine Advocate, Wine Spectator, Wine Enthusiast, Falstaff, and Decanter. The Auslese expressions, including the 'Goldkapsel' bottling, demonstrate the vineyard's capacity for concentrated fruit and mineral precision at a higher ripeness level. Mosel Rieslings are defined by their aromatic intensity, crystalline acidity, and ability to express terroir across sweetness levels; these wines exemplify that character, balancing the region's signature elegance with the depth that noble rot and extended hang time can impart.