Whisky is a distilled alcoholic beverage made from fermented grain mash. Various grains (which may be malted) are used for different varieties, including barley, rye, wheat, and corn. Whisky is typically aged in wooden casks, made of charred white oak. Whisky is a popular drink around the world and there are many different types. Scotch whisky, Irish whiskey, Canadian whisky, Japanese whisky, and American whiskey, however, many more are also becoming noted for their high-quality whiskies.