The Glaetzer philosophy focuses simply on the production of small-volume, super premium wines. The company holds a firm belief that the wines are made in the vineyard – a combination of the French notion of terroir combined with Australian vineyard site knowledge. The wines are produced from vines grown in well-drained sandy clay loam over a solid limestone pan. This particular soil, widely recognized as the best for dry grown Shiraz , is limited to the Ebenezer region in the northwestern part of the Barossa Valley . Yields are exceptionally low, with 1 to 1 1/2 tons per acre of Shiraz from some of the 80-year old vines being common. Glaetzer has exceptional fruit, and thus opts for a minimalist approach.