Scotch whisky whisky used. An age statement on the bottle, in the form of a number, must reflect the age of the youngest whisky used to produce that product. A whisky with an age statement is known as guaranteed age whisky. Scotch whisky without an age statement may, by law, be as young as three years old. In the early 21st century, such "No age statement" whiskies became more common, as distilleries responded to the depletion of aged stocks caused by improved sales. Labels may also carry various declarations of filtration techniques or final maturation processes. A Scotch whisky labelled as "natural"
Scotch whisky and smoother, because a column still can perform the equivalent of multiple distillation steps in a continuous distillation process. Second, the "phylloxera" bug destroyed wine and cognac production in France in 1880. Scotland was traditionally divided into four regions: The Highlands, The Lowlands, The Isle of Islay, and Campbeltown. Due to the large number of distilleries found there, the Speyside region is now also recognized by the Scotch Whisky Association (SWA) as a distinct region. The whisky-producing islands other than Islay are not recognised as a distinct region by the SWA, which groups them into the Highlands region. Although only