In the Czech Republic, they do boilermakers a little different. The spirit of choice is usually an 80 proof bitters called Fernet Stock from the Czech city of Plzen-Bozkov. Mixing the Fernet into the beer is frowned upon. Shooting the Fernet is optional. The preferred method is sipping the Fernet just before taking a drink of the beer. The Fernet prepares the palette for the beer, intensifying its taste.
