Winemaker Sandi Arns has crafted wine in Napa Valley since 1972, including a formative run at Chateau Montelena and Heitz Cellars, where she worked on the celebrated 1974 Martha's Vineyard Cabernet Sauvignon. She and husband John built and bonded their own small winery in 1985, drawing on decades of hands-on experience across California and international winemaking.