The Macallan 18 Y.O. Sherry Oak: An iconic Macallan with a robust flavour This 18 year old Macallan is a Single Malt Scotch Whisky which is part of the Sherry Oak range, in which the whiskys are matured in ex-Sherry oak casks from Jerez, to ensure richness and complexity. Each Macallan whisky reveals an unrivaled commitment to barrel selection and distillation that has made the distillery famous since its inception in 1824. The spirit remains undisturbed in the same barrels for the number of years necessary to ensure that it is worthy of the Macallan tradition. It is these oak barrels that make the main contribution to the quality, natural colors and unique aromas and flavors that form the heart of The Macallan single malt.