National symbols of Ireland, the Republic of Ireland and Northern Ireland with Jameson Irish Whiskey and Tullamore Dew the main whiskey brands. Poitín, made from potatoes and with an alcohol content of up to 90% ABV, is the traditional Irish moonshine, brewed illegally since 1661, when a duty was placed on whiskey and other spirits were made illegal. According to one guidebook, ""If you see a product labelled "poteen" in an airport or a bar, it's simply a white duty-paid Irish schnapps. By definition, poteen is illegal and can't be sold."" Stout, a dark beer made using roasted oats or barley, is the national beer, with Guinness heavily promoted as a
Irish whiskey still derived spirit to produce, a cheaper, "blended whiskey". This blended whiskey, which was less intense in taste than pure pot still, was to prove popular in Britain, capturing much market share from Irish pure pot still whiskey. Despite changing tastes and falling market share, the adoption of Coffey stills was stubbornly resisted by Irish distillers for many years, with some arguing for restrictions on their use. For instance, in 1878, the big Dublin distillers jointly published a pamphlet entitled "Truths about Whisky," in which they referred to the output of Coffey stills as ""Good, bad or indifferent; but it