Leitz’s hometown of Rüdesheim is the historic birthplace of the famous distillery Asbach Uralt. After the war, a fellow vigneron named Carl Jung began a distillery. Ultimately, Jung could not compete with the local brandy, but he developed a vacuum distillation system which enabled him to lower the temperature at which alcohol could boil off (because the boiling point becomes lower as atmospheric pressure decreases). Innovations in vacuum distillation have improved in recent years, and Leitz found a producer in Rheinhessen who recently patented a new, completely closed system that allows wine alcohol to boil at 28°C, preserving “wine-like” aromas and characteristics.