Irn-Bru: Scotland's "Other National Drink"

Each major claim carries one of three labels. established means supported by primary records, official bodies or several independent reliable sources. shared means the core fact is sound but sources disagree on details, dates or interpretation. traditional means widely repeated but not traceable to a primary or independent source.

The weak points are dates and sales. Sources give Robert Barr's start in aerated waters as 1875 (the company's own history) or 1880 (Falkirk's council archives). Sales figures for the whole Scottish soft-drinks market are owned by research firms and are rarely published in full, so any "number one" claim needs to say which shops and which year it means. Much of Irn-Bru's folklore comes from its own advertising.

A Falkirk firm and a Glasgow drink

shared The Barr story starts in Falkirk. Robert Barr began making aerated waters there; A.G. Barr dates this to 1875, while Falkirk Council's archives date his Burnfoot Works to 1880. Both towns have a fair claim to the drink. In 1887 his son Robert Fulton Barr opened a second business in Glasgow, and in 1892 Andrew Greig Barr took it over. His initials are the "A.G." in the company name. The Glasgow business soon ran independently, and it was there that Iron Brew was launched on 15 April 1901. The two family firms only became one company in 1959. Some histories blur the two branches: the social historian John Burnett, in a 1997 paper published in Order and Disorder (2000), credits the 1901 Iron Brew to "Robert Barr, a mineral water manufacturer of Falkirk". The company's own history places the launch with the Glasgow firm.

shared Carol Foreman's Made in Scotland (2nd edn, 2010), written with material supplied by A.G. Barr, offers a middle version. She says Robert Barr added soft drinks in 1875 to the cork-cutting business his father had set up in Falkirk in 1830; that Robert Fulton Barr opened his Glasgow business in 1887 in Great Eastern Road, later renamed the Gallowgate, and left for Ireland five years later, leaving his brother Andrew in charge; and that in 1901 the Falkirk and Glasgow firms "jointly launched" Iron Brew. That would reconcile Burnett with the company. When it was launched, she adds, the Glasgow firm employed about 200 people and needed 150 horses for deliveries.

established Foreman also explains why Barr's products reached Edinburgh only in 1963. When Robert Barr set up in Falkirk, Mr Dunbar of the Edinburgh soft-drinks firm helped him, and the two agreed not to sell in each other's territory. The arrangement lasted more than eighty years and ended only when Dunbar bought a business in Kirkcaldy, where Barr's already traded. A.G. Barr floated in 1965, when applications for more than two million shares came in for the 500,000 offered, and bought Tizer in 1972, its first national brand outside Scotland.

established Barr's was one of many such firms. Burnett counts 37 soft-drink makers in Glasgow and 11 in Falkirk by the end of the 19th century, part of a new mass market as working-class incomes rose and sugar became cheap after its duty was abolished in 1874. Ginger beer was the best-known commercial drink in the north of England and Scotland, where more than a thousand trade names have been identified.

An American name and an English strongman

established Barr's did not invent the idea. Research by David Leishman of Grenoble Alpes University, reported in 2017 and later published in his book Consumer Nationalism and Barr's Irn-Bru in Scotland (Palgrave Macmillan, 2020), traced "IRONBREW" to Maas & Waldstein, a New York chemicals firm, in 1889. The American drink was sold on its health benefits until US food and drug laws stopped that, and it had largely faded by the 1920s.

established The flavour reached Britain through Stevenson & Howell of London, which launched an Iron Brew essence in the summer of 1898 and sold it to bottlers. It also registered the strongman trademark that Barr's later used. Leishman's conclusion is that Irn-Bru became Scottish through branding and advertising rather than being invented in Scotland. Barr's has never claimed to have invented iron brew drinks; it says there have been many Iron Brews but only one Irn-Bru.

A tonic in the age of temperance

established Iron Brew was sold as a health drink as well as a treat. Burnett places it alongside Vimto, created by a Manchester druggist in 1906 as a temperance drink and "Health Tonic", and Tizer. All three were strongly flavoured drinks that echoed older home-made herb beers and copied the methods of Coca-Cola, launched in 1886 as a temperance drink and "brain tonic". According to Burnett, Iron Brew was promoted as "a stimulating tonic, restorative and hangover cure".

established Catherine Brown, in The Oxford Companion to Food, makes the same connection. She places Iron Brew among the patent bottled drinks made in Scotland in the early twentieth century, driven partly by the strength of the temperance movement and drawing on the herbalists' tradition of tonics and health drinks. Her phrasing describes where the drink was developed commercially, not where the name began; the American and London origins above are later research.

established Burnett's wider argument is that soft drinks, from medieval cordials onwards, have nearly always claimed health benefits to justify what is mostly sugar and water. He counts their main real benefit as offering an alternative to alcohol. He also notes the costs: by the 1990s heavy soft-drink consumption had helped push British sugar intake above 100 lb a head a year, with harm to children's teeth.

established During the Second World War the Ministry of Food put the whole industry, a heavy user of sugar and imported ingredients, under the Soft Drinks Industry (War Time) Association. Supplies were rationed, prices fixed and many small firms closed. The industry revived when sugar rationing ended in 1952.

established Foreman gives Barr's part in this. From 1942 only authorised manufacturers could continue, each given a number; Barr's was No. 6. They could make only standard drinks to set recipes, sweetened with half sugar and half saccharin, and Iron Brew was not one of them, so it stopped. Barr's advertised its absence as one of the hardships of the war, and kept the Ba-Bru cartoons running so the name would not be forgotten. Own brands returned in 1947.

Why "Irn-Bru"?

established During the Second World War, soft drinks were controlled and Iron Brew disappeared from sale. Post-war labelling rules were to require brand names to be literally true, and the drink was not brewed. Barr's answer was a new spelling. The IRN-BRU trademark was registered on 18 July 1946, and the drink returned to the market under that name in 1947. Many accounts give 1948 for the relaunch; the company's own history gives 1947.

established A common version of this story says the problem was that the drink contained no iron. That is wrong. Irn-Bru contains a trace of iron, 0.002 per cent ammonium ferric citrate. The issue was the word "brew".

shared Foreman gives a different account of the law. In her version the rule was only proposed after the war, and the company's chairman, Robert Barr, registered the phonetic spelling in 1946 to be safe. The labelling regulations did not take effect until 1964, she writes, and then included a "grandfather" clause allowing names in use for thirty years, by which time there was no point in changing back. She gives the iron content as 0.125 mg per fluid ounce, which is consistent with 0.002 per cent of ammonium ferric citrate. The exact legal sequence has not been checked against the statutes for this card.

shared The food historian Catherine Brown, in her signed entry in The Oxford Companion to Food (3rd edn, 2014), gives a fuller account in which both words mattered. She writes that in the early days "iron brews" were made by several manufacturers and often contained no iron. All of them disappeared during the Second World War, when the soft-drinks industry was rationalised. After the war, she says, a rule required a set quantity of iron in any drink called "iron brew", and there was also doubt about calling a drink a "brew" if it was not brewed in the traditional way. Barr's responded with the new spelling. This may explain where the "no iron" version of the story comes from: it fits other makers' iron brews, not Barr's. The iron quantity she quotes cannot be squared with the 0.002 per cent of ammonium ferric citrate she also reports, so the exact terms of the post-war rule remain unclear.

What is in it

established Brown lists the ingredients as 0.002 per cent ammonium ferric citrate, caffeine, sugar, flavourings and colouring, and describes the drink as orangey-golden with "a sweet-spicy flavour with a citrus tang". Since the 2018 reformulation, part of the sugar has been replaced by sweeteners (see below). She also notes the drink's role as a symbol: carried abroad by nostalgic Scots and taken to football matches, at home and away, where Scotland's "number one drink is not allowed". Alcohol has been banned at Scottish football grounds since the early 1980s, which helps explain why a soft drink became a supporters' emblem.

The secret recipe

traditional Barr's says the recipe contains 32 flavours and that only three people know it in full: former chairman Robin Barr, his daughter Julie Barr, and one director. These are company statements and cannot be checked independently. The figure has varied: Foreman, writing in 2010 from company information, says the recipe was known to only two board members and kept in a bank vault. The further story that the recipe is kept in a vault in Switzerland is a rumour repeated in the press, not something the company has documented.

Does it outsell Coca-Cola?

shared For much of the 20th century Irn-Bru was one of very few local drinks anywhere to outsell Coca-Cola in its home market. Burnett repeats a claim from the Chambers Scottish Drinks Book (1990) that in the 1980s it outsold Coca-Cola in Scotland by three to one; he presents this as a claim, and no independent figures for it have been published. By the early 2000s that was no longer clearly true. Nielsen figures reported by The Scotsman for the year to 16 August 2003 put standard Coca-Cola top of Scotland's "impulse" sales, in corner shops and petrol stations, at £23.4 million, with Irn-Bru second at just under £20 million. In supermarkets, Diet Coke led at £24.4 million, with Irn-Bru third at about £16 million. Coca-Cola's regional director called Irn-Bru's market leadership "an urban myth"; the editor of Scottish Grocer thought the two were neck and neck.

established A related claim went viral in 2017: a map showing Scotland as the only country where Coca-Cola is not the best-selling drink. The fact-checking site The Ferret rated it false. Coca-Cola cannot legally be sold in Cuba or North Korea because of US trade embargoes, so Scotland is not unique. The Ferret did not dispute Irn-Bru's popularity in Scotland.

The 2018 sugar cut

established In January 2018, ahead of the UK soft drinks levy, Barr's cut the sugar in Irn-Bru by about half, from around 8.5 teaspoons a can to 4, adding sweeteners. A petition started by Ryan Allen on change.org passed 21,000 signatures within days. Barr's said the drink kept "the same secret Irn-Bru flavour essence" and that nine in ten regular drinkers in its taste test rated the new version a good or excellent match.

Advertising and the strongman

established Advertising made Irn-Bru Scottish as much as the drink did. Early labels used a strongman, later linked to the Highland Games athlete Adam Brown. For decades newspapers carried a comic strip, The Adventures of Ba-Bru. The slogan "Made in Scotland from girders" played on the iron in the name. Later campaigns were deliberately cheeky and often drew complaints to the advertising regulators.

established Foreman fills in the detail. The first label showed Adam Brown, a Highland athlete from Shotts, holding up a glass of Iron Brew; a Cambridge rower replaced him in 1922. William Barr, chairman from 1909 to 1931, admired the strongman Eugen Sandow, and the firm tied its drinks to sport: the champion athlete Donald Dinnie endorsed Iron Brew in 1904, and the boxer Benny Lynch was paid £3 for a testimonial in 1938. The Adventures of Ba-Bru and Sandy, about a turbaned Indian boy and a kilted Scots boy always in search of Iron Brew, began in the 1930s, ran weekly in newspapers until the early 1970s and first used the spelling Irn-Bru in 1947. Foreman links Ba-Bru to "Sabu the Elephant Boy"; Sabu was the young actor who starred in the 1937 film Elephant Boy, based on a Kipling story. Barr's first television advertisement, in 1964, was based on the cartoon, and no copy survives in the company archive. The company's claim that it was the longest-running advertising cartoon is its own.

shared Foreman dates both "Your other national drink" and "Made in Scotland from girders" to a campaign of the mid-1970s, which used ginger-haired boys, girders and, in one poster, Popeye. That is earlier than the 1983 Glasgow billboard given above for "Other National Drink"; the two may refer to different uses of the phrase. She also records that a 1998 poster of a cow dreaming of becoming a burger drew almost 600 complaints and was named the most offensive advertisement of the year.

traditional Irn-Bru's reputation as a hangover cure is folk belief, not medical fact, though Burnett's account suggests the idea was in the drink's early promotion. Its status at Hogmanay, at weddings and in Scottish humour is real, but it is cultural, not scientific.

• The first "IRONBREW" was sold in New York in 1889, twelve years before Barr's official launch.
• The strongman on the label was registered as a trademark by a London firm in 1898, not by Barr's.
• Irn-Bru does contain iron, about 0.002 per cent ammonium ferric citrate.
• The new spelling was registered as a trademark on 18 July 1946.
• The "A.G." in A.G. Barr is Andrew Greig Barr, who died in 1903 aged 31.
• Barr's two family firms, in Falkirk and Glasgow, did not merge until 1959.
• A 1983 Glasgow billboard first called it Scotland's "Other National Drink".
• When the sugar was cut in 2018, a petition against the change passed 21,000 signatures within days.
• Another Scottish firm made a soft-drinks first: Rose's, ships' chandlers of Leith, created Rose's Lime Juice, which Burnett calls the first commercially made concentrated fruit juice in Britain.
• Early Iron Brew was advertised as a hangover cure, according to the historian John Burnett.
• Irn-Bru contains caffeine as well as its trace of iron.
• Catherine Brown notes that many early "iron brews" from other makers contained no iron at all.
• During the Second World War Barr's was authorised soft-drinks maker "No. 6".
• The boxer Benny Lynch was paid £3 for endorsing Iron Brew in 1938.
• No copy survives in Barr's archive of its first television advertisement, made in 1964.

• Myth: Irn-Bru was invented in Scotland. The name and the essence came from New York (1889) and London (1898).
• Myth: the name changed because the drink contains no iron. It contains a trace of iron; it is not brewed.
• Disputed: "Irn-Bru outsells Coca-Cola in Scotland". The claim needs a date and a measure.
• Myth: Scotland is the only country where Coca-Cola is not number one.
• Unproven: the Swiss vault. It is not established fact.
• Disputed: the founding date. Sources say 1875 or 1880.
• Myth: Irn-Bru is a hangover cure. The claim began as advertising.
• Unsourced: Irn-Bru outsells Coca-Cola "three to one". It is an unsourced 1980s claim.
• Unclear: the post-war iron rule. Catherine Brown reports a legal minimum of iron for "iron brew" drinks, but her figure does not match the drink's stated iron content.
• Disputed: when the labelling rule took effect. Some accounts say 1946; Carol Foreman says the rule came into force only in 1964.
• Disputed: Barr's "firsts". The first ring-pull can ends in the UK (1970) and the longest-running advertising cartoon are company claims.
• Myth: Ba-Bru came from a Kipling book called Sabu the Elephant Boy. Sabu was the young actor in the 1937 film Elephant Boy, based on a Kipling story.
• Disputed: the date of "Your other national drink". Foreman dates it to the mid-1970s; other accounts to a 1983 billboard.