DAB is the original beer from Dortmund. For more than 100 years it has been brewed in the city of Dortmund. The name DAB originates from the initials of the brewery (Dortmunder Actien-Brauerei) and represents the world famous Dortmunder beer type ever since.Characterized by its bright golden colour, smooth natural taste and its outstanding taste and quality, DAB is enjoyed by connoisseurs the world over. DAB. Das Dortmunder Original.