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
The Wind That Shakes the Barley to the post-rebellion phenomenon of barley growing and marking the "croppy-holes," mass unmarked graves into which slain rebels were thrown, symbolizing the regenerative nature of Irish resistance to British rule. As the barley will grow every year in the Spring time of the year this is said to symbolize Irish resistance to British oppression and that Ireland will never yield and will always oppose British rule on the island. The song is no. 2994 in the Roud Folk Song Index. There are numerous small variations in different performed versions, and many performers leave out the fourth stanza of Dwyer Joyce's