With no vineyards of its own, Rosenblum Cellars' home base is a giant hangar next to the docks in Alameda. Here, winemaker John Kane directs his focus to Zinfandel, Petite Sirah, and Syrah...but mostly Zinfandel. They like it so much at Rosenblum that they make over 20 varieties. And although these wines come from vineyard sites all over California, the huge range of Zins are reliably rich and extroverted, typically made in a super-ripe, high-alcohol style. Kane took over in 2009 from Kent Rosenblum, the King of Zin.