Paul John (whisky) evaporation during aging, known as the angels' share, is also higher in India, at 10–12% per year, than in Scotland, where the annual evaporative loss is about 2%. This leaves a hogshead with only 150 bottles left in it, after three years, compared to around 350 in a Scotland. Michael John describes it this way, "Whisky matured at these temperatures simply cannot be aged for the kind of time expected with Scotch, even trying to mature our whisky for just 10 years would leave barely a bottle of liquid in the barrel. Fortunately, the heat actually speeds up the maturation
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