The final pH of wine C was 3.6, and the final ethanol concentration was 13.5%. White wine D was produced from grapes at the same chateau as red wine B. The must (50 mg of SO2 per liter, pH 3.0) from Semillon grapes was clarified by natural sedimentation and transferred to metal barrels (100 liters) for fermentation at 25 to 30°C.