Beerenauslese is the term for 'selected berries,' which is used in the wine trade to describe specially selected and overripe grapes, that usually are infected by a beneficial fungus known as botrytis (so-called "noble rot").
Beerenauslese wines are very rare and extremely expensive. They are considered to be one of the world's top dessert wines. Beerenauslese is a remarkably rich wine, with low alcohol, but with greater acidity. On top of that it has a great aging potential and richness of honey, caramel and tropical fruits can make them age for 10-35 years on average and up to 40 years for exceptional wines.