Originally started in 1978, Rosenblum Cellars focuses on fine Zinfandels and California Rhone varietals. For this winery, it's more than just producing fine wines, it's about the entire wine experience You can attend classes to learn more, attend a tasting or even some of the special events often held here. The purpose of Rosenblum's winery is to bring wine lovers together in unison with the perfect wine in a great place to create a truly great wine.