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
Laphroaig distillery distillery identifies Charles by his title of Duke of Rothesay, as he is recognised in Scotland. The 15-year-old was reportedly the prince's favourite Scotch whisky. Laphroaig calls itself "the most richly flavoured of all Scotch whiskies", and is most frequently aged to 10 years, although the 15-year-old variety is common (the 27-, 30- and 40-year-olds are rare and expensive; the 18-year-old was discontinued in late 2015). The whisky has a peaty/smoky flavour. The "Laphroaig Quarter Cask" was introduced in 2004. This expression is aged in smaller casks and is not chill filtered. Due to the smaller barrels used, the oak