A gentle, session-strength Irish-tradition amber ale — copper-red to reddish-brown, with a soft candy-like caramel malt sweetness, light toast and faint roast, and restrained hop character. Typically 4–5% ABV. Smithwick’s and Kilkenny are the globally recognized commercial examples.
In the glass
Origin
“Irish red ale” as a style name is rarely heard in Ireland itself; it entered wide use through American marketing in the early 1990s. The style’s two most-cited historical anchors are Smithwick’s of Kilkenny and the Lett’s brewery of Enniscorthy in County Wexford. Smithwick’s was founded in 1710 by John Smithwick on the site of the 13th-century St. Francis Abbey, where Franciscan friars had brewed ale from the 14th century until the abbey was dissolved during the Reformation in 1537; Smithwick’s grandson Edmond bought the brewery freehold in 1827 and attached the family name to the ale. Guinness acquired the company in 1965, the Kilkenny brewery closed in 2013, and Smithwick’s is now brewed in Dublin under Diageo — though the brand itself has never marketed its beer as “red ale.”
Lett’s — officially Mill Park Brewery, in Enniscorthy, County Wexford — was founded in 1864 by George Henry Lett and brewed “Enniscorthy Ruby Ale” until the brewery halted beer production in 1956. Lett’s granted the “George Killian’s” name (after founder G.H. Lett’s great-grandson George Killian Lett) to Pelforth of France in the 1960s, where it was marketed as George Killian’s Bière Rousse. Coors of Golden, Colorado took an American license in 1981 and released the beer as George Killian’s Irish Red in the United States. The Coors version — brewed first as a 4.9% ABV red ale, later reformulated as a 5.2% amber lager — became a top-selling specialty brand through the early 1990s, and its heavy marketing is widely credited with putting the phrase “Irish red ale” into the American vernacular for the session-strength caramel-amber ales that American craft brewers now brew in the same mold.
Notes
Two quirks to flag for drinkers. First, the flagship “Killian’s Irish Red” on American shelves is now an amber lager, not an ale, despite the style name it helped popularize. Second, the style is an export-market category: ask for a “red ale” in most Irish pubs and you’ll draw a blank look. The session-strength caramel-amber profile is alive and well in Ireland, but it tends to be served as a pub staple rather than a named style — most famously as Smithwick’s and its related brand Kilkenny.
Defining examples
Smithwick’s·Kilkenny Irish Beer·Murphy’s Irish Red·Great Lakes Conway’s Irish Ale