The wine may not be sweetened by more than 4% alcohol by volume. Only grape must selected for a sweet reserve could be made use of; concentrated grape will have to and RCGM are prohibited for Landwein, good quality wine and Prädikat wine (This is certainly even a restriction of https://weedwednesdays.de/nippen-geniesen-und-entdecken-in-italiens-charmantesten-weinladen/