The white grape variety (also VB Cal 6-04, Valentin Blattner Cal 6-04) is an interspecific new breed between ( Sauvignon Blanc x Riesling ) x unknown resistance partners. They are genes from Vitis amurensis and Vitis vinifera contain. The crossing of the hybrid was carried out by the winery owner Valentin Blattner in Soyhières in the canton of Jura in the Switzerland, The late ripening lockerbeerige and hardy Vine with pink hard-shelled berries is resistant to both mildews and Botrytis which is why they are considered PIWI Variety applies. It produces white wines with aromas of apricots, apples, limes and black currants ( Cassis ). The variety is grown in small quantities in Germany; among others from the wineries Timo Dienhart (Moselle) and Ansgar Galler (Pfalz).