Near Extinct Cult Wine Emerges in San Diego In a state where Chardonnay, Cabernet and Zinfandel are kings, the nearly extinct Charbono is taking center stage in San Diego at Gianni Buonomo Vintners in the coastal community of Ocean Beach. With fewer than 70 total acres planted to this rarity, Charbono is truly a cult wine. It’s an obscure varietal…