A special release bottle of Collectivum XXVIII Natural Cask Strength Blended Malt Scotch Whisky, a blend of all 28 operational single malt distilleries owned by Diageo. This was matured in a combination of refill American oak hogsheads, refill European oak butts, ex-bodega European oak and first-fill bourbon casks and bottled in 2017 at 57.3% ABV as part of Diageo's annual Special Releases. 

A blended malt included in Diageo's Special Releases series for the first time Collectivum XXVIII lives up to the hype. The expression include malt from every single operational Diageo distillery*. It's the only blend of its kind ever released, and at 57.3% ABV. There's 28: Auchroisk, Benrinnes, Blair Athol, Caol Ila, Cardhu, Clynelish, Cragganmore, Dailuaine, Dalwhinnie, Dufftown, Glendullan, Glen Elgin, Glenkinchie, Glenlossie, Glen Ord, Glen Spey, Inchgower, Knockando, Lagavulin, Linkwood, Mannochmore, Mortlach, Oban, Roseisle, Royal Lochnagar, Strathmill, Talisker and Teaninich.