PR: Focus on packaging and personality - International wine-marketing day at INTERVITIS INTERFRUCTA As part of the 61st German Winegrowers' Congress on the occasion of INTERVITIS INTERFRUCTA 2013 on April 23, 2013 in Stuttgart, the German Wine Institute (DWI) is organizing an International Wine-marketing Day for the first time, under the motto "Successful wine-marketing: The role of packaging and personality."