Bocker Multigrain is a pastry sourdough with ancient grains worked inside the dough. It is stabilized in a natuaral way by using salt and vinegar. It can be processed without further preparation, because the swelling of the grains has already taken place; this gives bakers safety and more time for other important matters. ready-to use product. No in-house fementation necessary. Might be use as a hot soaker dough. recommended dosage: 10 - 40 % flour base.