Common name in Germany for a partially fermented grape, There are two interpretations for the name Federweißer. The most common is that it is derived from the yeast-cloudy, matt white color. But in the German Dictionary of the Brothers Grimm you can find the following entry: Federweißer; young, still fermenting milky-cloudy wine (from the old name Federweiß for "alum" because alum was previously added to the wine as a preservative) . It was only in the 1990s that the growing areas Ahr. palatinate and Rheinhessen a feather red from above all Blue Portuguese. Frühburgunder and Dornfelder popular.
Depending on the stage of fermentation, there are numerous names, most of which are not regulated by law. These include Bitzler (Pfalz), Brauser, Bremser, Fiederwäissen (Luxembourg), Prickler, Rauscher, Sauser, Storm (only in Austria) and Suser. See also under must and grape, Complete lists of the numerous vinification measures or cellar techniques, as well as the wine, sparkling wine and distillate types regulated by wine law are under the keyword winemaking contain. There is extensive wine law information under the keyword wine law,