Westmalle Dubbel is a dark, reddish-brown Trappist beer with a secondary fermentation in the bottle. The creamy head has the fragrance of special malt and leaves an attractive lace pattern in the glass. The flavour is rich and complex, herby and fruity with a fresh-bitter finish. It is a balanced quality beer with a soft feel in the mouth and a long, dry aftertaste. The Dubbel contains 7% alcohol.

Since 1856 the monks have also been brewing a dark Trappist beer along with their table beer. Since the recipe was modified in 1926, they have been brewing slightly heavier beer. This is the foundation of today’s Dubbel.