Scotch or scotch whiskey is actually a type of whiskey that is processed in Scotland. The term is legally reserved to whiskey that is produced in Scotland. It is originally made from malt barley, but during the 18 th century distilleries started producing whiskies made from wheat and rye. In short, scotch is basically just a whiskey that was produced in Scotland, nothing more. According to the Scotch Whisky Regulations, scotch must be aged in oak barrels for at least three years. First written mention of Scotch whisky was in the Exchequer Rolls of Scotland, 1495 by a friar named John Cor, who was a distiller. [links]