ABV: 10.2 percent A true Trappist beer, brewed by Trappist monks on the grounds of the Saint Sixtus Abbey, this Belgian quad is a rich chestnut brown color with a nose of dark fruit and brown sugar. Complex and spicy, this brew is full of lively carbonation. What makes this beer so special is not only its taste but its rarity. Procuring a bottle is notoriously difficult; the monks are only allowed to make enough beer each month to support themselves and no more.