Two Styles of Zinfandel from Joel Peterson

There was a time when consumers who loved the zinfandel grape could follow the "R" rule, that is, they could buy zinfandel wines produced by Ravenswood, Renwood, Ridge or Rosenblum and have no qualms about quality or integrity. The truth, of course, is that many wineries in California make fine examples of zinfandel, and the labels are not confined to …