The Macallan Triple Cask Matured 12 years old is created from a trinity of spirits, matured individually in European sherry seasoned oak casks, American sherry seasoned oak casks and American ex-bourbon oak casks. Once filled, the maturing spirit remains undisturbed in the same casks for 12 years - after which this complex combination of casks is exquisitely and expertly married together to create this vibrant single malt.