Most vodka is produced from a combination of several grains. Wheat and rye are most commonly used, but corn and barley are also used. In addition to grain, there is also vodka on the market that is made from potatoes or grapes. Vodka is a good basis for various cocktails such as Bloody Mary or Cosmopolitan, but can also be drunk straight. Then serve the vodka from the freezer for the ultimate taste experience.