Korn is a type of alcohol that is made from grain like wheat, rye or barley. It's very popular in Germany and some other European countries. To make korn, the grain is fermented, which means that tiny living things called yeast eat the sugar in the grain and turn it into alcohol. Then, the liquid is distilled, which is like boiling it to remove all the water and concentrate the alcohol. The result is a clear, strong liquid that's between 30% and 50% alcohol by volume. Korn is usually enjoyed straight, meaning without any mixers or other ingredients, and either served at room temperature or chilled. It tastes kind of like vodka, but with a slightly different flavor depending on which grain was used to make it. Because korn is quite strong, you have to be careful when drinking it and shouldn't have too much at once!