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
Single malt whisky unless specified as "unchillfiltered" or "non chill filtered". Unchillfiltered whisky will often turn cloudy when stored at cool temperatures or when cool water is added to them, and this is perfectly normal. Unchillfiltered, cask-strength whisky is generally regarded as whisky in its "purest form". Unlike wine, whisky does not continue to mature in the bottle. E150A caramel colouring may be added to single malt Scotch whisky prior to bottling, to give the whisky a more rich and well-aged appearance. No other additives are allowed in Scotch whisky. This contrasts with the rules governing Canadian whisky production, which allow the addition