Fecha de publicación: -- Fuente: WIPO "wine" A method for production of sherrizated wine materials providing grapes grinding with stemming, separation of must from fiber, sulphitation, sedimentation, must fermentation on pure yeast culture, removal of wine material from yeast deposit, clarification, fortification with subsequent wine sherrization by membrane method, wherein sulphitation is carried out by introduction of complex preparation on the basis of potassium metabisulfite, ascorbic acid and halotanine in the ratio of 5:3:2 respectively in the amount of 1-3 g/dal, and before fermentation diammonium phosphate or preparation on its basis is introduced into must in the amount of no more than 3 g/dal, providing diammonium phosphate content of no more than 3 g/dal.