Mittnacht-Klack produces wines from Alsace, the northeastern French region celebrated for its aromatic whites and distinctive terroir. The winery's portfolio centers on Riesling, the region's signature variety, which thrives in Alsace's continental climate and mineral-rich soils. The Sélection de Grains Nobles Riesling represents the pinnacle of late-harvest winemaking, where noble rot concentrates sugars and complexity. The Riesling Alsace Grand Cru 'Rosacker' draws from one of Alsace's most prestigious vineyard sites, known for producing wines of depth and structure. The Crémant d'Alsace Brut rounds out the range—a sparkling wine made by the traditional méthode champenoise. Wines from Mittnacht-Klack have been assessed by Decanter, Wine Advocate, Wine Enthusiast, and Wine Spectator.