The Belgium Post has issued a stamp sheet dedicated to the famous Belgian Trappist beers.
A Trappist beer is a beer brewed by or under control of Trappist monks. There are a total of 174 Trappist monasteries worldwide; only seven (six in Belgium, one in the Netherlands) produce Trappist beer and are authorized to label their beers with the Authentic Trappist Product logo that indicates a compliance to the various rules of the International Trappist Association.
The stamps feature the following varieties of Trappist beers: Achel, Chimay, Orval, Rochefort, Westmalle and Westvleteren.