“Grottenbier” was created by Master Brewer Pierre Celis. It is an aromatic dark beer with 6.5% alcohol content. In the marl pits in Kanne ( Belgium) and Valkenburg (the Netherlands), deep under the ground, you can taste Grottenbier in a constant temperature of 11° Celsius. As it is the case with Champagne, the bottles are placed in a “pupitre” which results in an additional fermentation.
This beer has been noted as one of the best "10 present-day beers by beer guru Michael Jackson". Medium bodied and unique, chocolaty bitter-sweet, created by the master brewer Pierre Celis, a dark Speciality beer.
St Bernardus has a history which is connected to two Trappist breweries, Mont Des Cats (Cheese) and the infamous Westvleteren (Beer). Shortly after the second world war the Trappist monastry St Sixtus in Westvleteren was looking to commercialise their beers, in step St Bernardus.