Some of the brands of Irish Breakfast tea include Barry's, Bewley's, Republic of Tea, Twinings, Taylors of Harrogate, Stash Tea Company, Fortnum and Mason, Mark T. Wendell, Harney & Sons, and Upton Tea Imports. All of these and many other companies create their own blends of Irish Breakfast tea.
In Ireland, it is not referred to as "Irish Breakfast tea", but simply as "tea". It is enjoyed throughout the day and evening. The Irish brands, such as Lyons and Barry's, are heavily weighted toward Assam.
Most commonly, Irish Breakfast tea is drunk with milk, but some prefer to drink it straight or with lemon.