Mossburn Speyside Blended Malt whiskey blends from several Speyside distilleries. The whiskey matured initially in barrels of American oak, so the whiskey gets the basis of his character. Then the transition is made to a first-fill Oloroso sherry butt. This results in rich, sweet and fruity taste influences. Finally, a transition takes place again, this time to heavily charred American oak. Here the whiskey acquires its full flavor notes of vanilla.