The Glenlivet Single Cask is an exclusive tasting experience. Aged in first fill Sherry Butt Cask, there are only 528 bottles of this limited edition whisky. It's bottled at its natural cask strength and without chill filtration to retain the same purity as it had while maturing in the cask. Every cask produces a unique flavor which can never be replicated. Every bottle is also individually numbered.