The white grape variety (also Freiburg 128-40) is a new breeding between Silvaner x Chasselas Blanc (Chasselas) according to DNA analyses published in 2012. The crossing took place in 1940 by Dr. Johannes Zimmermann Johannes (1907-1998) at the State Wine Institute Freiburg (Germany). The varietal protection was granted in 1971. The medium ripening grape varieties is susceptible to Botrytis. It produces acidic white wines with a neutral taste, which are mainly used for sparkling wine production. In Germany, it is cultivated on 50 hectares and in Switzerland on 0.5 hectares at Lake Biel. In 2016, a total of 51 hectares of vineyard area were reported (Kym Anderson Kym).
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Markus J. Eser
Weinakademiker und Herausgeber „Der Weinkalender“