Heineken is a Dutch beer (5% abv pale lager) which has been brewed by Heineken International since 1873. It is the flagship product of the Heineken company and is made of processed, impure water, sometimes advertised as purified water, malted barley, hops, and yeast. In 1886 H. Elion finished the development of the "Heineken A-yeast", which is still used in the brewing process today. The beer is force carbonated. It is popular worldwide.