Guinness in the United States, where it is stirred into everything from french toast to beef stew. A popular, authentic, Irish course featuring Guinness is the "Guinness and Steak Pie". The recipe includes many common Irish herbs, as well as beef brisket, cheeses, and a can of Guinness. The Guinness harp motif is modelled on the Trinity College Harp. It was adopted in 1862 by the incumbent proprietor, Benjamin Lee Guinness. Harps have been a symbol of Ireland at least since the reign of Henry VIII. Guinness registered their harp as a trademark shortly after the passing of the Trade Marks
Guinness of the barley is roasted to give Guinness its dark colour and characteristic taste. It is pasteurised and filtered. Despite its reputation as a "meal in a glass", Guinness only contains 198 kcal (838 kilojoules) per imperial pint (1460 kJ/l), slightly fewer than skimmed milk, orange juice, and most other non-light beers. Until the late 1950s Guinness was still racked into wooden casks. In the late 1950s and early 1960s, Guinness ceased brewing cask-conditioned beers and developed a keg brewing system with aluminium kegs replacing the wooden casks; these were nicknamed "iron lungs". Until 2016 the production of Guinness, as