METHOD FOR PRODUCTION OF FLAVOURED DARK BEER Russian patent published in 2010 - IPC C12C12/00 

FIELD: food industry.

SUBSTANCE: method provides for mixing of grapefruit rind and hop, extraction of produced mix by liquid nitrogen with separation of according miscella, cutting of girasol, its drying in microwave field at specified parametres of process and frying. Afterwards girasol and malt are mixed, produced mix is impregnated with separated miscella with simultaneous increase of pressure up to the value that corresponds to pressure of saturated nitrogen vapors at the temperature of impregnation, pressure reduction down to atmospheric one with simultaneous freezing of mixture, its cryo-grinding in medium of released nitrogen, adding sugar, pouring with drinking water and saccharification to make wort. Beer yeast is added into it, main fermentation is carried out, as well as afterfermentation and filtering.

EFFECT: method makes it possible to reduce duration of technological process and to increase stability of foam in finished product.