Collectivum XXVIII holds a peculiar place in the Diageo Special Releases canon. Released in 2017, it stands apart from the single distillery bottlings that typically headline the annual collection — this is a blended malt Scotch whisky, assembled from all twenty-eight operating malt distilleries within the Diageo portfolio at the time of production. The name itself is a nod to that number. It is, in essence, a snapshot of an empire bottled at a single moment in time.
I should clarify a point that trips up many collectors: despite being composed of malts from multiple distilleries, this carries no age statement. That decision was almost certainly practical — blending twenty-eight components while hitting a target profile means flexibility with maturation periods matters more than a number on the label. At 57.3% ABV, it was bottled at cask strength with no chill filtration, which tells you Diageo intended this for the enthusiast, not the casual gift buyer. That strength commands respect in the glass.
What to Expect
With twenty-eight malt distilleries contributing to the vatting, you are dealing with an extraordinarily broad flavour spectrum. Consider what is in the mix: coastal malts from the likes of Talisker and Caol Ila sitting alongside the fruit-forward Speyside character of distilleries such as Mortlach and Cragganmore, with Highland and Lowland components adding further dimension. The result is not a whisky that tastes like any single distillery — it is something else entirely, a composite portrait that rewards patient exploration.
At cask strength, the texture is substantial. I would strongly recommend adding water gradually. A few drops at a time will open successive layers, and the whisky changes character meaningfully as it dilutes. This is not a dram to rush. Give it twenty minutes in the glass before you form any firm opinions.
The Verdict
Collectivum XXVIII is a genuinely unusual bottling, and I mean that as high praise. Blended malts are often dismissed by single malt purists, but that prejudice misses the point entirely. The craft here is in the vatting — the art of combining twenty-eight distinct distillery characters into something coherent and compelling. At £160, it sits in a competitive bracket, but the sheer uniqueness of the concept justifies the price. You simply cannot get this combination of distilleries in a single bottle from any other release. It was a limited edition in 2017, and secondary market prices have climbed well beyond the original retail, which tells you everything about how the market has judged it.
I rate this 8 out of 10. It loses a mark for the lack of transparency around the component ages and proportions — I understand the practical reasons, but at this price point, more information would have been welcome. It loses another half-mark simply because the breadth of components, while fascinating, occasionally means the whisky can feel like it is pulling in several directions at once. But that is also precisely what makes it interesting. This is a whisky for the curious drinker, the collector, the person who wants to taste the full sweep of Scottish malt distillation in a single glass.
Best Served
Neat, in a Glencairn, with a small jug of still water on the side. At 57.3%, you will want to find your own dilution point — start with three or four drops and work upward. A classic Highball with quality soda water also works surprisingly well here, as the effervescence lifts the lighter, more floral components from the blend. But I would pour the first dram neat and undiluted, just to understand what you are working with at full strength.
