Whisky have won global whisky awards and medals, including the World Whiskies Awards and Jim Murray's Whisky Bible "Liquid Gold Awards". By Canadian law, Canadian whiskies must be produced and aged in Canada, be distilled from a fermented mash of cereal grain, be aged in wood barrels with a capacity limit of for not less than three years, and "possess the aroma, taste and character generally attributed to Canadian whisky". The terms "Canadian Whisky", "Rye Whisky", and "Canadian Rye Whisky" are legally indistinguishable in Canada and do not require any specific grain in their production and are often blends of two
Single malt whisky more are not uncommon. During the time it spends in the wood, a significant percentage of each cask's content will evaporate. The lost product is known as the angel's share. The selection of casks can affect the character of the final whisky. Outside of the United States, the most common practice is to reuse casks that previously contained American whiskey, as US law requires several types of distilled spirits to be aged in new oak casks. To ensure continuity of supply of used oak casks some Scottish distilling groups own oak forests in the US and rent the new barrels