Blackwell is sourced exclusively from sloped vineyards around the north and west of Barossa Valley, precincts which yield small harvests of exceptionally concentrated Shiraz grapes. The focus is on preserving freshness and purity of these extraordinarily intense, dark fruit expressions, while retaining perfect tannin balance in the finished wine. The northern hamlets of Kalimna and Ebenezer contribute juicy dark fruit and rich mocha flavours, while parcels from western districts such as Seppeltsfield give Blackwell it's muscular, brooding structure.

Established 1944 at the very heart of Barossa Valley, the St Hallett wineworks, one of the region's most formidable labels, attracts fruit from the most distinguished growers in the ancient winegrowing hamlets of Kalimna and Ebenezer, Krondorf and Gomersal, Seppeltsfield and Marananga. Shiraz is picked at full ripeness to capture concentration of flavour, vibrant tannin structure and a dense, inky colour. Each parcel is individually crushed and vinified in a collection of old, traditional open fermenters. Upon completion, batches are matched to one of a selection of American oak barrels for two years maturation, gaining considerable texture and power prior to release.