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
Jameson Irish Whiskey of Jameson (22 bottles a day), making it the largest server of Jameson's in the world – a title it maintained for four consecutive years. As well as Jameson Original, other Jameson expressions include: Jameson is produced from a blend of grain whiskey and single pot still whiskey, which uses a mixture of malted and unmalted or "green" Irish barley, all sourced from within a fifty-mile radius around the distillery in Cork. The barley is dried in a closed kiln fired by natural gas (formerly anthracite coal). This is in contrast to the traditional method used in some Scotch whisky