From Stunts Wiki

The "official" beer of World Stunts Meetings in 2004, 2006 and 2008; made by Borsodi Brewery Co. (Hungary). It used to be the most popular beer in Hungary because of it's excellent taste/price ratio (about 0.60-0.65 €/0.5 l; 4.5-4.6% alcohol content). It is rumoured (especially spreaded by Akoss Poo) that Borsodi also has a sexual doping effect. :D

Official website