In the world of beer brewing, yeast is one of the most important ingredients, and greatly influences the taste. Ale yeasts are well documented, but for years people brewed lagers and hoped that they would end up as expected. Genetic analysis showed that an isolated lager yeast was a hybrid between an ale yeast and an unknown species. In 2010 during a survey of yeasts in Patagonia, the other parent to the lager yeast strain was found. Heineken has the rights to this yeast strain, and in 2017 released the first beer brewed with it. They recently released a documentary in partnership with National Geographic showing the process of how the yeast was discovered, and plan to help fund a yeast research lab with the scientist in Patagonia who found the wild strain.