Irish Whiskey Glossary

The number on the label stating the age of the youngest whiskey in the bottle. Everything inside is at least that old. Like Scotch, Irish whiskey must mature a minimum of three years to legally be called whiskey.

A blend of two or more of the Irish styles — pot still, malt, and/or grain whiskey. The biggest-selling category by far, led by Jameson, and typically light, smooth, and approachable.

A merchant who bought new-make spirit, matured it in their own bonded warehouse, and bottled it under their name — the historic Irish equivalent of an independent bottler. Mitchell & Son's Green Spot is the classic surviving example.

Whiskey bottled at (or near) the strength it left the cask, undiluted — often 55–60%+ ABV. Redbreast's cask strength releases are prized examples.

The continuous column still patented in 1830 by Irishman Aeneas Coffey. Ironically, Ireland largely rejected it while Scotland embraced it for grain whisky — though it's now central to Irish grain and blended whiskey.

The best-known peated Irish single malt (from Kilbeggan). Notable precisely because it's the exception — Irish whiskey is overwhelmingly unpeated.

Irish whiskey is a protected Geographical Indication, governed by the 2014 Technical File. It legally defines the styles (pot still, malt, grain, blended), requires production and 3-year maturation on the island of Ireland, and is enforced by the state.

Whiskey made from maize or wheat in a continuous (Coffey) still, lighter and more neutral than pot still or malt. The volume base of most Irish blends.

The classic served drink: hot coffee, Irish whiskey, sugar, and a float of lightly whipped cream. Invented in the 1940s at Foynes (later Shannon) Airport to warm cold transatlantic passengers.

By law, Irish whiskey must mature at least three years in wooden casks on the island of Ireland. Most quality Irish whiskey rests considerably longer.

A bottle with no age on the label. It still meets the 3-year legal minimum, but lets the blender marry younger and older stock without declaring the youngest.

The clear spirit straight off the still, before cask maturation. Legally not yet whiskey (that needs three years in wood), but the raw DNA every Irish whiskey starts from — and, high-proof and unaged, essentially poitín's cousin.

Whiskey bottled without chilling and filtering out fatty compounds. It retains more texture and flavour, and may go cloudy with ice or water — a sign of quality, not a fault.

Dried, burned bog vegetation used to dry malt, lending smoky character. Central to much of Scotch — but rare in Ireland, where whiskey is traditionally dried with clean heat and left unpeated.

Ireland's traditional, historically illicit grain or potato spirit — essentially unaged Irish 'moonshine'. Once outlawed for centuries, it's now legal and holds its own protected GI status.

The onion-shaped copper still used for batch distillation of Irish malt and single pot still whiskey. Ireland's tend to be very large, contributing to a characteristically full, rounded spirit.

The older name for single pot still whiskey, phased out because 'pure' was considered misleading. If you see it on a vintage bottle, it means single pot still.

A cask that previously held sherry, adding dried fruit, raisin, nut, and spice notes. A signature of many great Irish whiskeys, married with ex-bourbon casks.

Grain whiskey (from a continuous still) produced at a single distillery. 'Single' means one distillery, not one grain — it can still use maize plus a little malted barley.

Whiskey made from 100% malted barley in pot stills at a single distillery. The same idea as single malt Scotch — but Irish single malt is often (not always) triple-distilled.

Ireland's signature style: made from a mash of both malted AND unmalted ('green') barley, distilled in pot stills at a single distillery. The unmalted barley gives a distinctive creamy, spicy, oily character found nowhere else.

Distilling three times rather than the twice typical of Scotch, producing a lighter, cleaner, higher-proof spirit. Common in Ireland and often credited for its smoothness.

The Irish for 'water of life' — the Gaelic phrase that, anglicised over centuries, gave us the word 'whiskey' itself.

Raw, un-germinated barley used alongside malted barley in single pot still mashes. It's the source of the style's signature creamy texture and green, spicy 'pot still' character.

Irish whiskey is spelled with an 'e' — as is most American whiskey. Scotch, Japanese, and Canadian whisky drop it. The 'e' is a genuine mark of Irish (and American) tradition.