This beer is infected. Infected by a small single celled monster called Brettanomyces. This little buddy creates amazing funky flavours. Some think the aroma reminds them of a barn yard, others associate it with the smell of wet socks. The little critter is really motivated to work and ferments for months or years. This fermentation results in a high carbon dioxide pressure. So high in fact that the beer comes out of the bottle like a geyser. So make sure to have a glass at hand when you open this.