Dalmore 12 is aged for the first nine years in American white oak ex-bourbon casks before half is transferred to ex-oloroso sherry casks for the final three years. The result is a whisky with a combination of sweetness and rich, sherry flavours.

After 15 years of maturation in American white-oak, ex-bourbon casks, around 30% of the whisky is transferred into Spanish Oloroso