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"
Blackadder (whisky bottler) "Aberdeen Distillers" and "The Clydesdale Original Scotch Whisky Co. Ltd." Since 2000, Blackadder has also offered the "Raw Cask" series, which consists of whisky bottled directly from the cask, without even mechanical filtering. The lack of filtering leaves some detritus in the bottles including fragments of cask wood. In 2014 Blackadder introduced a range of whiskies called Black Snake. These whiskies are produced using a Solera system, where aged single malts are placed into either an Oloroso or PX Sherry cask for further aging. When deemed ready, 2/3 of the cask is drawn to be bottled and the cask is