Bain’s Cape Mountain Whisky 21-Year-Old Double Cask Finish started life as Bain’s Cape Mountain Whisky and spent an additional ten years in older American oak before transferred to seasoned Amontillado and Manzanilla sherry casks for a final six years’ maturationBain’s Cape Mountain Whisky 21-Year-Old Double Cask Finish started life as Bain’s Cape Mountain Whisky and spent an additional ten years in older American oak before transferred to seasoned Amontillado and Manzanilla sherry casks for a final six years’ maturation