Irn Bru is the most popular caffeinated soft drink in Scotland, and available throughout the rest of Britain. Its advertising slogan is "Made in Scotland from girders", although the closest one can come to substantiating this claim is the 0.02% Ferric Citrate listed in the ingredients. In Scotland, it is even more popular than Coca-Cola.
The drink was first produced in 1901 under the name Iron-Brew, although changed in 1946 to its phonetic spelling to comply with government regulations.
When half-flat, cold, and combined with a haggis supper for breakfast, it is widely reputed to be an excellent cure for hangovers.
Mfg. A.G. Barr, p.l.c., United Kingdom
Zany official Irn Bru web site: http://www.irn-bru.co.uk