Created by the Moortgat family, bottled Duvel is one of Belgium’s favorite ales. The secret of its success lies in using only best-quality ingredients, and in the well-balanced, very specific, complex brewing and refermentation process that takes over 90 days. After brewing and first fermentation--which takes about 30 days--the beer is tasted by the brewmaster and his staff. At this stage this beer is called "single-fermented." Typical Duvel flavors and aromas are already emerging, but the beer is lower in alcohol and carbonation, and the taste is slightly lighter and crisper.