Barrel for at least two years in new, charred oak containers. Other forms of whisky aged in used barrels cannot be called "straight". International laws require any whisky bearing the label "Scotch" to be distilled and matured in Scotland for a minimum of three years and one day in oak casks. By Canadian law, Canadian whiskies must "be aged in small wood for not less than three years", and "small wood" is defined as a wood barrel not exceeding capacity. Since the U.S. law requires the use of new barrels for several popular types of whisky, which is not typically considered
Malt whisky Malt whisky Malt whisky is whisky made from a fermented mash consisting primarily of malted barley. If the product is made exclusively at a single distillery (along with other restrictions), it is typically called a single malt whisky. Although malt whisky can be made using other malted grains besides barley, those versions are not called malt whisky without specifying the grain, such as rye malt whisky or buckwheat malt whisky. The exact definitions of "malt whisky" and "single malt whisky" and the restrictions governing their production vary according to regulations established by different jurisdictions for marketing whisky. For example, Scotch