3 Fonteinen is a Belgian brewery, specialized in geuze and kriek.
The brewery is situated in Beersel, near Brussels and produces classic versions of both kriek and geuze.
3 Fonteinen was founded in 1887 as a café and geuzestekerij, a place where geuze is produced by blending old and new lambics, acquired from other breweries.
The enterprise was bought by Gaston De Belder in 1953, who expanded it with a restaurant and left it to his sons Armand and Guido in 1982.
The remaining overheated geuze was made into an eau de vie called "Armand's Spirit", the sales of which enough allowed the brewery to continue operations.