Duvel is a natural beer with a subtle bitterness, a refined flavour and a distinctive hop flavor. Apart from pure spring water, which is the main ingredient of beer, barley is the most important raw material. Barley must germinate for five days in the malt house, after which malt remains. The colour of the malt and as a consequence also of the beer is determined by the temperature. Duvel obtains its typical bitterness by adding various varieties of aromatic Slovenian and Czech hops. We use only exclusive hops that are renowned for their constant, outstanding quality. The extra long maturation period is unique and contributes to the refined flavour and pure taste of Duvel.