On Islay, the plain peat is the honest peat

Islay is the loudest region on the shelf and one of the dearest, seventeen bottles this week around a middle of $112, nearly all of them big, tarry, maritime whiskies with a devoted following. A following like that pays a premium, and most of these bottles carry one over the whiskies the model reads as nearest them in flavour. The pattern worth noticing is where the premium is smallest. It is not on the limited releases or the cask-strength bottles. It is on the plain entry expressions, the standard-strength, no-special-finish ones, which sit closest to their crowds while the step-ups climb hard away from theirs.

Start with the two cheapest, because they are also the two closest to fair. Smokehead's standard Islay single malt is $82, about 14% over a band near $72, the smallest gap on the shelf and a straightforward hit of island smoke, toffee and apple up front, peat smoke and charcoal ash, a lick of aniseed on the finish. Laphroaig's Select Cask is $84, about 17% over its roughly $72 crowd, the gentler, softer Laphroaig, iodine and peat smoke laid on with a lighter hand, a soft ashy finish. Neither is a trophy bottle and neither pretends to be. For low-eighties money they are the cheapest genuine Islay smoke on the shelf, and the model reads both as barely over their neighbours, which on a region this proud is about as honest as peat gets.

Now the same two houses, dressed up. Laphroaig's Quarter Cask is $170, about 118% over a band near $78, the widest gap on the entire shelf, more than double what its neighbours run. It is a bigger, oilier Laphroaig, tar and ash and oily peat with a sweet grain note, matured in small casks for extra wood contact, and it is a genuinely characterful whisky. It is also asking well over twice the going rate for its room, which is a lot of money over the plain Select that shares its distillery and much of its character. Smokehead's High Voltage tells the same story in miniature: $127, about 55% over its roughly $82 crowd, a higher-strength version of the standard bottle with more pepper and medicinal iodine and a sweet caramel-toffee weight, and a gap four times wider than the standard Smokehead a shelf over.

Two more fill out the dear end. Bruichladdich's Port Charlotte 10 is $146, about 47% over a band near $99, a heavily peated Islay with a sweet, buttery, medicinal edge, butterscotch and sherry over the iodine, and a real reputation behind it. Lagavulin's 11-year-old Sweet Peat is $165, about 47% over its roughly $112 crowd, a special bottling rather than a core expression. It carries no published tasting notes of its own this week, so beyond the model's read of it, big maritime peat with a faint sherry edge, there is little to say about what is in the glass and rather more to say about the gap, which is wide and in the company of a special-release tag. Both are proper whiskies; both sit near half again over their rooms.

There is a shape here, and it is the opposite of the instinct. On a famous Islay shelf the temptation is to assume the money is better spent climbing, that the limited release or the cask-strength bottle is where the real whisky lives and the entry pour is the compromise. On this week's numbers it is the other way about. The plain bottles give you the clearest, least-taxed version of each distillery's smoke, and every step up the range widens the gap over the room faster than it deepens the glass. The smoke does not get proportionally better; the premium gets proportionally bigger.

Hold onto that, because Islay is the region drinkers most often overspend in. The names carry a mystique few other whiskies manage, and it is easy to assume the cask-strength bottle or the small-batch release must be the serious choice and the standard pour the beginner's one. The glasses do not bear that out. A plain Laphroaig or a standard Smokehead gives you the tar, the iodine and the maritime smoke that made the island famous, and gives it for close to what its neighbours charge. The dearer bottles add intensity and polish, and charge steeply for both. Neither is wasted money if you want exactly what it offers. Just go in knowing the entry bottle is not the compromise it looks like, and that the climb buys reputation as fast as it buys whisky.

So, buying Islay. For value and for a true taste of island smoke, the standard Smokehead at $82 and the Laphroaig Select at $84 are the calls, both barely over their crowds and both unmistakably Islay in the glass. If you want more intensity and have made peace with paying for it, the Port Charlotte 10 at $146 is a serious, well-regarded heavily-peated malt asking a real but not absurd premium. The Smokehead High Voltage at $127, the Lagavulin 11 Sweet Peat at $165 and above all the Laphroaig Quarter Cask at $170 are the ones to reach for only if you specifically want that particular bottle, because each asks a steep premium over its room and, in Laphroaig's case, over the plain Select that shares its smoke. Start at the bottom of each range and climb only if the glass, not the label, asks you to.