Heineken is a Dutch beer (5% abv pale lager), made by Heineken International since 1873. It is available in a 4.6% alcohol by volume in countries such as Ireland. It is the flagship product of the company and is made of purified water, malted barley, hops, and yeast. In 1886 H. Elion finished the development of the Heineken A-yeast. This is the yeast that is still used for the beer.The beer is force carbonated. It is popular in the United States, Australia, Hong Kong, New Zealand, Europe and Middle Eastern countries