German term for "dry," these wines by law cannot have a residual sugar level higher than 0.4 percent. However, wines with higher acidity can lower the perception of sweetness. So for a wine to be labeled Trocken, its sugar level can be as high as 0.9 percent if the wine's total acidity is within two grams per liter of the sugar level. The limits for sparkling wines (Sekt) also vary. In either case, when you see Trocken on the label, you're getting something relatively dry.