Robert Biale Vineyards in Napa has its roots in the 1930s, when the Biale family started growing Zinfandel grapes and other produce on the outskirts of Napa. The family grapes mostly were sold to local wineries, though the Biales saved some to make wine for the family. The winery was formally founded in 1991. The estate grows Zinfandel and Petite…