Founded in 1878, The Glenrothes Distillery in Scotland’s Speyside region is part of the Edrington Group, a consortium that also includes Scotch whisky heavyweights Macallan and Highland Park. Given that company, it’s no surprise that about 90% of Glenrothes’ whisky is matured in sherry casks, giving it a rounded character, a resonant aroma, and the potential to successfully age for a very long time.
https://thewhiskeywash.com/reviews/whisky-review-the-glenrothes-12-year-old/