Highland Park has long occupied a singular position in Scotch whisky — an Orkney distillery that bridges the maritime intensity of island malts with a honeyed, heathery warmth more commonly associated with the mainland. The 18 Year Old expression in the Thanes Series, titled Young Siward after the character from Shakespeare's Macbeth, is the second act in what has become one of the more ambitious limited-edition programmes from the distillery. Bottled at a commanding 50.8% ABV, this is Highland Park with real conviction behind it.
The Thanes Series has drawn both praise and scepticism since its inception — theatrical naming and premium pricing will do that. But I think there is something worth paying attention to here. Highland Park's house style, with its interplay of peat smoke, sherry-cask sweetness, and that distinctive Orcadian heather character, is one of the most recognisable in Scotch whisky. At 18 years of age and bottled at cask strength, this expression should deliver that profile with considerable depth and authority. The higher ABV is a welcome choice; it suggests the distillery trusts drinkers to engage with the spirit on its own terms rather than diluting it to a polite 43%.
What to Expect
Without confirmed details on cask composition, I will not speculate on specifics. What I can say is that Highland Park's 18-year-old expressions have historically drawn on a combination of sherry-seasoned European and American oak casks, and the distillery's use of Orkney peat — cut from local heathland rather than the denser, more phenolic mainland peat — gives their spirit a distinctive aromatic signature that is quite unlike anything from Islay or the West Coast. At nearly 51% ABV, expect that character to arrive with real presence. This is not a whisky that will fade into the background of an evening.
The Macbeth theming is, admittedly, a matter of taste. Young Siward is a relatively minor character — brave, doomed, honourable — and whether that narrative framing adds anything to your enjoyment of the liquid is entirely personal. I am more interested in what is in the glass. And at 18 years old from a distillery with Highland Park's pedigree, there is every reason to expect something serious and well-made.
The Verdict
At £220, this sits in competitive territory. You are paying a premium for the limited-edition packaging and the Thanes Series branding, and there are excellent 18-year-old single malts available for less. But Highland Park at cask strength with nearly two decades of maturation is not something the distillery releases carelessly. The 50.8% ABV gives this expression an immediacy and intensity that standard-strength bottlings cannot match, and for collectors following the Thanes Series, this is an essential chapter. I score it 8.3 out of 10 — a confident, well-structured whisky from one of Scotland's most distinctive distilleries, presented at an ABV that rewards careful attention.
Best Served
Pour it neat and give it a full five minutes in the glass before your first sip. At 50.8%, this will evolve considerably as it opens up. After your first taste, add a few drops of water — no more than a teaspoon — and see how the spirit responds. Highland Park's character tends to bloom beautifully with a little dilution, and at this strength you have real room to explore. A Glencairn glass is ideal. This is not a whisky for cocktails or ice; it deserves your full attention.
