The fourth Cask Strength release has been matured predominantly in first-fill sherry seasoned European oak casks, along with first-fill sherry seasoned American oak casks, a small quantity of refill casks, ex-bourbon casks and for the first time ex-port casks too. Bottled straight from the cask, without the addition of water to reduce alcohol content, the Cask Strength series marries the traditional craft of whisky making with a modern approach to flavour exploration.