The winery owner Valentin Blattner from Soyhières in the canton law ( Switzerland ) has been extensively active as a private breeder since the 1980s. The intersections were carried out on his farm, the subsequent selection and rearing in part in the nursery Freytag in Neustadt / Lachen - Speyerdorf in the palatinate ( Germany ). Great emphasis was placed on resistance against frost and fungal diseases Therefore, mostly varieties of the species were Vitis amurensis or with genetic parts thereof. So it's mostly about PIWI varieties, Unusually, however, the breeder does not produce both parents, but only prominent varieties such as those often involved Cabernet Sauvignon called. Blattner created the new varietiesBirstal nutmeg. Cabaret Noir. Cabernet Blanc. Cabernet Colonjes. Cabernet Jura. Cabertin. Millot-Foch. Pinotin. Reselle. Riesel. Satin Noir. Sauvignac and VB 32-7, These varieties are partly in Belgium. Germany. Canada, the Netherlands. Austria and especially in the Switzerland grown.