Kasteelbier Tripel Top fermentation beer, 2de fermentation in bottle. Golden Blonde Bottle: 33cl Alcohol: 11% volume This is a live beer, and since secondary fermentation takes place in the bottle, there is a relatively high amount of carbonation. The incredible fact about this beer is that it has a 15 year shelf life! The nose has a honey-malt sweetness. The palate is malty, sweet, filled with butterscotch and complex hop flavors, mellowed by a nutty, vanilla edge.