Before he was a vintner, Hahn was a successful business man in Paris, New York and London. He arrived in Monterey County in the 1970s in search of a new area to transform into an acclaimed winemaking region. In 1979, he purchased the Smith Vineyard and Hook Vineyard, which were planted to Cabernet Sauvignon at the time. The following year, the family made their first vintage of wine. Hahn spent the next four decades dedicated to building a stellar reputation for what he identified as a unique winemaking area. The journey to making others see the same was not without adversity, but Hahn's determination eventually led to consensus of the area's quality among neighboring vintners and outsiders alike.