Since 1998, Rainer Hack has managed the Warga-Hack family winery in the Sausal, since 2002 together with his wife Jasmin Scheucher-Hack, from whose family an important part of the winery’s ten hectares of vineyards originate. The birth of their first child was also the main impulse for converting to ecological agriculture, so the couple’s children could grow up in unencumbered, rich nature.
The Warga-Hack Winery has been a certified member of Demeter, the world's oldest biodynamic agricultural association, since 2017. In Austria, around 60 wineries belong to the association, which is characterised by collective continuing education, preparation days, and friendly cooperation.
Many of the small-scale single-site vineyards of the Sausal were already recorded by name in 1322 by the Archbishopric of Salzburg. The clergy drove this quality work forward in the following centuries. The microclimates and various soil structures were then evaluated and catalogued through their observations over a longer period of time.