There was a time when I was very much intimidated by the name Grgich Hills, thinking I was not worthy of the wines produced. After all, there’s a lot of Napa fame and history behind the label. But I dipped my toe, sunk my teeth, no — wetted my palate with the 2014 Fumé Blanc, was taken aback by the 2013 Estate Chardonnay, and pretty much threw a party in honor of the 2013 Cabernet Sauvignon. What I’ve come to learn is that Grgich Hills can and does produce fun and affordable wines. And Grgich Hills 2012 Zinfandel is one such gem.