AWRI report: Identifying objective measures for Barossa Valley Shiraz grapes

Chemical and spectral measures of grapes were previously applied to predict grape allocation grades for Cabernet Sauvignon, Shiraz and Chardonnay. Using the specific methods highlighted as being of importance to Shiraz grape quality in that study, a new project has continued efforts in this area, with the goal of understanding compositional aspects contributing to quality differences in Barossa Shiraz grapes and wines within the premium category.