There are two main processes for making alcoholic beverages: fermentation and distillation. Fermentation involves yeast converting sugars into alcohol, and is used to make beers, wines and sake. Distillation involves heating fermented materials to evaporate and then collect the alcohol vapors, producing spirits like whiskey, vodka and rum that have a higher alcohol content between 40-50%. Many beverages are also aged in wooden casks to acquire color and flavor profiles.