
Peated & Islay Whisky
Explore peated and Islay whisky, from the maritime smoke of Ardbeg, Laphroaig and Lagavulin to heavily peated releases from Port Charlotte, Kilchoman, Longrow, Kilkerran and beyond.
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A Guide to Peated & Islay Whisky
Peated whisky gets its distinctive smoky character from the use of peat during the malting process.
When peat is burned to dry malted barley, compounds from the smoke are absorbed by the grain and can remain perceptible through fermentation, distillation and maturation. Depending on the peat, production choices and final whisky, these aromas can range from earthy smoke and bonfire to iodine, seaweed, tar, herbs and medicinal notes.
Islay is particularly famous for peated single malt, but peat is neither exclusive to Islay nor used by every distillery on the island.
What Is Peated Whisky?
Peat is partially decomposed organic material formed over long periods in waterlogged environments.
Historically, it provided an accessible source of fuel in parts of Scotland. When used during the kilning of malted barley, peat smoke introduces phenolic compounds responsible for many of the aromas associated with smoky whisky.
The amount of peat used is only one part of the finished style. Distillation, cask maturation, spirit strength and time in bottle can all influence how smoke ultimately presents in the glass.
Islay Whisky
Located off Scotland's west coast, Islay has become the region most closely associated with peated Scotch whisky.
Distilleries including Ardbeg, Laphroaig and Lagavulin have established some of the category's most recognisable smoky styles, often combining peat with maritime, medicinal and coastal characteristics.
Other Islay producers demonstrate that the island is considerably more diverse. Bruichladdich, for example, produces unpeated whisky under its own name while using Port Charlotte and Octomore for its peated expressions.
Bunnahabhain is also particularly associated with an unpeated house style, despite its Islay location.
Ardbeg, Laphroaig & Lagavulin
For drinkers seeking the classic heavily peated Islay profile, Ardbeg, Laphroaig and Lagavulin provide three important reference points.
Ardbeg is known for intensely peated whisky balanced by citrus, spice and sweetness. Its range extends from Ardbeg 10 Year Old through to higher-strength expressions such as Uigeadail and Corryvreckan, alongside limited releases including Scorch.
Laphroaig is particularly distinctive for its medicinal, iodine and maritime character. Beyond the benchmark 10 Year Old, different cask programmes can add another dimension to the distillery's peat, including Sherry and Port-influenced releases.
Lagavulin tends towards a rich, deeply smoky style in which peat can sit alongside dried fruit, sweetness and substantial cask character.
Kilchoman & Modern Islay
Kilchoman offers a more recent chapter in Islay's distilling history.
Founded in 2005, the distillery is notable for its relatively small-scale production and close connection to farming and whisky production on Islay.
Machir Bay provides an introduction to the distillery's peated house style, while 100% Islay releases take the grain-to-bottle story further through the use of barley grown on the island.
For drinkers interested in the relationship between peat, provenance and contemporary Islay production, Kilchoman provides a useful counterpoint to the island's older distilleries.
Peated Whisky Beyond Islay
Not all peated Scotch comes from Islay.
Longrow, produced at Springbank Distillery in Campbeltown, offers a distinctly peated expression of Campbeltown whisky.
Kilkerran Heavily Peated from Glengyle Distillery provides another Campbeltown interpretation, including limited batch and cask-strength releases.
Elsewhere, distilleries such as Talisker and Benriach demonstrate how smoke can take on different characters outside Islay.
This makes peated whisky the broader category, while Islay whisky refers specifically to whisky produced on the island.
What Does PPM Mean in Whisky?
PPM, or parts per million, is commonly used when discussing the phenol content of peated malt.
Higher PPM figures can indicate that the barley was more heavily peated before distillation, but they should not be treated as a direct measurement of how smoky the finished whisky will taste.
Phenols are altered and reduced throughout production and maturation, while different compounds can produce different types of smoky aroma.
For this reason, a higher stated PPM does not automatically mean a whisky will taste proportionally smokier than one with a lower figure.
Peat & Cask Maturation
Peat can interact particularly well with different forms of cask maturation.
Ex-Bourbon casks can bring vanilla, citrus and sweetness alongside smoke, while Sherry casks can introduce dried fruit, spice and richness.
Port and other wine casks can create further contrast between smoke, fruit and sweetness.
Bottlings such as Laphroaig 10 Year Old Sherry Oak Finish, Laphroaig Port Wood Casks and richer cask-led Ardbeg expressions demonstrate how maturation can substantially change the presentation of peat without removing its underlying character.
Choosing Peated Whisky
For a classic introduction to Islay peat, Ardbeg, Laphroaig and Lagavulin are natural starting points, each presenting smoke in a distinctly different way.
Kilchoman offers a younger Islay distillery perspective, while Port Charlotte provides heavily peated whisky from Bruichladdich.
For smoky whisky beyond Islay, explore Longrow and Kilkerran from Campbeltown, or peated expressions from producers elsewhere in Scotland.
Those already familiar with peat can move towards cask-strength, Sherry-matured and limited releases, where smoke is combined with greater concentration or more pronounced cask influence.
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Explore peated and Islay whisky from Ardbeg, Laphroaig, Lagavulin, Kilchoman, Port Charlotte and other leading producers, from classic smoky single malts to cask-strength and limited releases.
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