Hailing from Denver, Colo., Rocky Mountain Oyster Stout does in fact incorporate real bull testicles. Fried bull testicles also known as Rocky Mountain Oysters is a delicacy that serves as the inspiration for the prank-turned-beer. What started off as a joke became so hugely popular among fans of idea soon turned into a reality. On October 8, the brewery will tap the first keg of bull testicle beer and make it available to consumers.
According to the brewing company's website:
The beer is made with Colorado-grown base malts, roasted barley, seven specialty malts (including special B and smoked malt) and Styrian Goldings hops. The beer gets a small dose of sea salt, too. “It gives the beer an extra layer of Rocky Mountain oyster flavor,” Brown notes, “and additional texture.”
The 8-barrel batch also included 25 pounds of bull testicles that were sliced by hand and then roasted (by Wynkoop sous chef Andrew Langlo) before being added to the beer’s mash.
Below is the original video that sparked this creation: