Whisky or Whiskey is a type of distilled alcoholic beverage made from fermented grain mash. Various grains (which may be malted) are used for different varieties, including barley, corn, rye, and wheat. Whisky is typically aged in wooden casks that are generally made of charred white oak. The production of Whisky is strictly regulated worldwide with many different classes and types in production. However, there are typical characteristics that unify the many varied styles produced worldwide which are: the fermentation of grains, distillation, and ageing in wooden barrels.
There are two variations in the spelling: whisky and whiskey. "Whiskey" is common in Ireland and the United States, while "Whisky" is used in all other whisky producing countries. Whisky made in Scotland is known as Scotch Whisky, or simply as "Scotch"
Whisk(e)y or whisky-like products are produced in most grain-growing areas and differ in base product, alcoholic content, and quality. Malt whisky is made primarily from malted barley. Grain whisky is made from any type of grain.