What is the most popular drink in Ireland?

The most popular drink in Ireland is Guinness. Guinness is a dark stout that has been brewed in Ireland since the 18th century. It is a well-known and iconic Irish drink, and it is enjoyed by people all over the world. Guinness is made from malted barley, water, hops, and yeast. It has a distinctive flavour and aroma, and it is often served with a creamy head.