barrel

All bourbons are whiskey, but not all whiskies are bourbons, therefore bourbon is a specific class/type of whiskey.  Whiskey can be made on any continent and is produced by fermenting grain, distilling the fermented liquid, and then placing the distillate into a barrel to mature. Bourbon, however, must be made in the United States, must include at least 51% corn in the grain bill, must be distilled at or below 160 proof, and must [...]