Quantum is the continuation of a twenty-year venture that began with the planting of Australian vines on Californian soil. Quantum is a wine of the world that embodies a bold alliance of varietals, revealing a wine that shows wisdom, made with conviction but also embedded in the "quality-first" philosophy that characterizes Penfolds' flagships underlying. The northern and southern hemispheres bring a valuable Cabernet Sauvignon from Napa Valley and a purebred Shiraz from South Australia.