Whisky is a type of liquor made from fermented grainmash. Various grains (which may be malted) are used fordifferent varieties, including barley, corn, rye, and wheat.Whisky is typically aged in wooden casks, which are typi-cally made of charred white oak. Uncharred white oakcasks previously used for the aging of port, rum or sherryare also sometimes used.
Whisky is a strictly regulated spirit worldwide with manyclasses and types.The typical unifying characteristics ofthe different classes and types are the fermentation ofgrains, distillation, and aging in wooden barrels.