Any special occasion in Ireland is incomplete without wine. In fact, celebrations dont start or end without wine. Guinness is the largest brand that is produced in Ireland is exported to corners of the world. Called the Wine of Ireland, it is the unique flavor of the roasted barley which remains unfermented and gives Guinness an edge over other wines. However, there are many more wines that are produced in the vineyards in a parts of the country. You can also take a tour to a vineyard that allows touring.