Palo Cortado is the rarest type of sherry (think of it as a very fine style of Oloroso, made from free-run must rather than subsequent pressings) and these casks are rarely used for whisky finishing. Some of the experiments have not been very convincing .

Deanston filled a few Palo Cortado casks with 1997 spirit . A first release was the Deanston 12 Years Palo Cortado finish , and now they bottled an older Deanston 21 Years Palo Cortado . It was matured for 18+ years in ex-bourbon casks and 2+ years in sherry cask.

Deanston 21 yo...