
Caol Ila Distillery: History, Owner, Range and Visitor Guide
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In this guide
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Caol Ila at a glance
Distillery fact | Verified detail |
|---|---|
Distillery / brand | Caol Ila |
Whisky region | Islay, Scotland |
Ownership (October 2026) | Diageo |
History | Founded in 1846 on Islay. |
Expressions to explore | Caol Ila 12 Year Old and Caol Ila 18 Year Old |
Visiting / editorial note | Check the distillery's official website for current access, tours and opening arrangements. |
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Caol Ila overlooks the strait between Islay and Jura and is one of the biggest producers on the island. This guide covers its history, owner, range and the questions people ask most.
Where is Caol Ila Distillery?
Caol Ila is near Port Askaig on the Isle of Islay, Scotland. The name comes from the Gaelic Caol Ìle, meaning Sound of Islay, in reference to the strait between Islay and Jura. It is pronounced kuh-LEE-luh.
Caol Ila history
Caol Ila was founded in 1846 by Hector Henderson. It did not fare well and changed hands in 1854, when Norman Buchanan, owner of the Isle of Jura distillery, took over. In 1863 the business was acquired by Bulloch Lade and Co of Glasgow, traders in whisky stocks. By the 1880s over 147,000 imperial gallons of whisky were produced there each year.
Bulloch Lade went into voluntary liquidation in 1920 and a consortium formed the Caol Ila Distillery Company Ltd. The Distillers Company took a controlling interest in 1927, and in 1930 Scottish Malt Distillers obtained all the shares. The distillery closed from 1942 to 1945 because of wartime restrictions on barley supply.
In 1972 the entire distillery was demolished. A larger one was built, designed by George Leslie Darge with glazed curtain walls to the still houses, and production resumed in 1974. The company eventually became part of Diageo.
Who owns Caol Ila?
Caol Ila is owned by Diageo.
Stills and production
Stills: three wash stills (19,000 litres) and three spirit stills (12,000 litres).
Water source: Loch nam Ban.
Capacity: 6,500,000 litres.
Mothballed: 1930 to 1937 and 1942 to 1945.
Around 95% of production is used in blends such as Johnnie Walker Black Label.
Since 1999 the distillery has also produced a non-peated Highland style spirit.
Caol Ila range
Caol Ila 12 Year Old, 43% ABV
Caol Ila Cask Strength
Caol Ila 18 Year Old
Caol Ila 25 Year Old
Check the official page for current bottlings.
Awards
Between 2005 and 2010 the 12 Year Old received two double gold, three gold and one silver medal from the San Francisco World Spirits Competition.
Official website
Caol Ila production in more detail
ScotchWhisky.com Whiskypedia lists six plain-shaped stills with wash still charges of 20,000 litres and spirit still charges of 12,000 litres. Condensers are shell and tube. There are ten washbacks, eight wood and two steel, with a minimum fermentation of 55 hours. The mash tun is a lauter type taking a 13 tonne grist, the yeast is creamed, the filling strength is 63.5 per cent and new-make comes off at about 70 per cent.
The Single Cask guide quotes wash stills of roughly 19,000 litres and a fermentation of 55 to 60 hours, and says the malt comes from Port Ellen Maltings at around 35 ppm, the same specification as Lagavulin. Whiskypedia says the malt is mostly made in house and gives the spec only as heavily peated. Treat the malt source as unconfirmed until checked with Diageo. Whiskypedia names the water source as Loch Nam Ban in its facts panel, while other sources give Loch nam Ban.
Ownership through the years
1846 to 1852: Henderson, Lamont and Co, founded by Hector Henderson
1854 to 1857: Norman Buchanan
1857 to 1920: Bulloch Lade and Company (The Single Cask dates its purchase to 1863)
1920 to 1927: Robertson and Baxter, after a brief period under JP O'Brien
1927 to 1986: Distillers Company Limited
1986 to 1997: United Distillers
1997 to now: Diageo
Unpeated runs and the blending role
Whiskypedia says Caol Ila experimented with unpeated malt in 1999. When the downturn came in the 1980s the distillery ran unpeated, Highland style spirit for blends, which helped keep it open. An unpeated batch is still made every year, with volumes set by the Diageo blending team forecasts. The Single Cask says around 95 per cent of output goes into blends, most notably Johnnie Walker, and that Bunnahabhain made the peated requirements during the silent period. Whiskypedia places that silent contraction in the 1980s, so check the exact dates before publishing.
From blend component to single malt
Whiskypedia notes that until 2002, when the 12 Year Old became the first permanent official bottling, malt drinkers had to look to independent bottlings. Its current range description lists the no age statement Moch, an 18 Year Old, a 25 Year Old, a Distillers Edition and annual special releases. Our draft range list above names a Cask Strength bottling, so confirm the current line up on the official Diageo page before publishing.
Capacity, rebuild and the visitor centre
The old distillery was demolished in 1972 and rebuilt with six stills in place of two, which made Caol Ila Islay's largest producer. A further revamp in 2011 added a new mash tun and more washbacks and lifted capacity to 6.5 million litres a year. In 2018 Diageo announced a new visitor centre built into the distillery warehouse, with a footbridge entry and a bar looking over the Sound of Islay to Jura. The Single Cask reports it opened on 25 August 2022 as part of Diageo's investment in Johnnie Walker homes, with tours from around 21 pounds. Prices and hours change, so check before travelling.
Whiskypedia gives the visitor address as Caol Ila Distillery, Port Askaig, Isle of Islay, PA46 7RL, with opening hours that vary by season. Its page lists 9am to 5pm from March to October and shorter days from November to February, and that listing may predate the 2022 reopening.
How to say it
The Single Cask gives the pronunciation as Cull EE-la, with the stress on the second part. The name is Gaelic for Sound of Islay.
Sources
Further sources checked
Caol Ila, ScotchWhisky.com Whiskypedia: https://scotchwhisky.com/whiskypedia/1829/caol-ila/
Caol Ila Distillery guide, The Single Cask (21 July 2026): https://www.thesinglecask.co.uk/blogs/distilleries/caol-ila
Photo credits
Image of Caol Ila Distillery. Photo: Andrew Wood / Wikimedia Commons (CC BY-SA 2.0). Image source · Licence
Caol Ila bottle range and expression comparison
Bottle / expression | Age | ABV | Documented producer expression |
|---|---|---|---|
Caol Ila 12 Year Old | Check label | Check label | Documented expression; batch and availability vary |
Caol Ila 18 Year Old | Check label | Check label | Documented expression; batch and availability vary |
Caol Ila Moch | Check label | Check label | Documented expression; batch and availability vary |
Caol Ila Distillers Edition | Check label | Check label | Documented expression; batch and availability vary |
Caol Ila Unpeated Special Release | Check label | Check label | Documented expression; batch and availability vary |
Producer and release sources document these expressions. Historical bottles may be out of production or unavailable. Bottled sourced or blended whiskey is not always entirely distilled at this site.
Bottle releases and visitor arrangements change over time; see original research and official sources.
More whisky distilleries to explore
Frequently asked questions about Caol Ila
Where is Caol Ila distillery?
Near Port Askaig on Islay, Scotland.
Who owns Caol Ila?
Hector Henderson, in 1846.
Who founded Caol Ila?
Hector Henderson, in 1846.
What does Caol Ila mean?
Sound of Islay, from the Gaelic Caol Ìle.
Why was Caol Ila rebuilt?
The whole distillery was demolished in 1972 and a larger one was built, with production resuming in 1974.
Sources and latest checks
Whisky Clan has retained the original researched history and source notes above. The comparison table lists documented expressions, not guaranteed current stock. Please check the producer's current bottle labels for strength, cask details and availability.
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Whisky producer and release source: https://www.malts.com/
About the author
![]() | Filip Janczak Storyteller, drinker and explorer of all things whisky. Read more about the person behind Whisky Clan and explore additional reviews and distillery guides. |






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