Austrian term for a partially fermented grape must that must come exclusively from grapes harvested and processed in Austria. It is derived from the "stormy" sound of the carbonated drink. It is a traditional term of origin protected within the EU, which is why it must be labelled with a country wine origin(Bergland, Steirerland or Weinland). In Austria, the fully fermented but still unfiltered cloudy wine is called Staubiger.

1 = red Sturm, Federroter, Bitzler, Brauser, Sauser; 2 = white Sturm, Federweißer; 3 = red wine, 4 = white wine
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Thomas Götz
Weinberater, Weinblogger und Journalist; Schwendi