Single malt whisky Single malt whisky Single malt whisky is malt whisky from a single distillery, that is, whisky distilled from a fermented mash made with malted barley, as distinguished from unmalted grain. Single malts are typically associated with single malt Scotch, though they are also produced in various other countries. Under Scotch Whisky Regulations, a "Single Malt Scotch Whisky" must be made exclusively from malted barley (although the addition of E150A caramel colouring is allowed), must be distilled using pot stills at a single distillery, and must be aged for at least three years in oak casks of a capacity not exceeding
The Whisky Barrel whiskies aimed at investors. The Scotch Whisky Regulations 2009, intended to provide Scotch whisky producers and retailers protection from foreign imitations, came into force on 23 November 2009 and apply to all home nations of the United Kingdom. The regulations apply to production, labelling, advertising and packaging of Scotch whisky. As a direct result The Whisky Barrel company cannot transfer or bottle oak casks of maturing Scotch whisky outside Scotland from 22 November 2012; all single malt Scotch whisky can only leave the country for retail purposes if it is contained within a bottle clearly stating its contents and source.