Winding between copper vats and oak barrels, a cluster of early-morning visitors filed through a cavernous Brussels building for an up-close peek at craft beers brewed using a centuries-old method -- before sampling the result.
Since it was founded in 1900 in Anderlecht, a working-class district of the Belgian capital, Brasserie Cantillon has been turning out so-called primitive "lambic" beers that are steeped in local tradition.
