Heineken is a Dutch beer (5% abv pale lager) which has been brewed by Heineken International since 1873. It is available in a 4.6% alcohol variety in countries such as Ireland. It is the flagship product of the Heineken company and is made of 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 in the United States, Australia, Hong Kong, New Zealand, Vietnam, Europe, Singapore and Middle Eastern countries.
The Heineken Open is a tennis tournament on the ATP International Series played in Auckland, New Zealand, taking place the week before Australian Open. It was also a combined men's and women's tournament until 1981. Currently the tournament venue ASB Tennis Centre hosts another women's tournament, ASB Classic, taking place the week before Heineken Open.