What’s coming up – reviews of three Glenmorangie specialty-cask ‘finishes’ of their single malt.
How distillers switch up the casks and hence flavor profiles
There are a few ways a distiller can introduce flavors outside of those provided by the very common ex-Bourbon cask. One way is to age the whisky entirely in specialty cask types (port, sherry, rum or wine casks). The Macallan standard expressions (12, 25) and all Glenfarclas bottlings are aged exclusively in sherry butts. Highland Park uses only sherry-seasoned casks, but employs two kinds of oak to get their flavor profile (American and Spanish).