The vineyards on the slopes behind the Kollmitz and Steinriegl are called Postaller. Due to the altitude and the separate trenches, there are significant differences even within the vineyards.

Soil profile Postaller

In the lower areas, the Postaller is formed from friable paragneiss landslide material, and in the vineyards at higher elevations, it transitions into hard and little-weathered paragneisses. In the middle elevations, some loess is also found.
The profile comes from the highest vineyard area of the Postaller. Here, the versatile paragneiss manifests itself with inclusions of dark-coloured, compact amphibolite.
The vines are challenged by the shallow soil. The wines tend to be more delicate with a moderate alcohol content.