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

FIELD: food industry.

SUBSTANCE: invention relates to brewing technology. Method involves mixing cumquat rind and hops, extracting the obtained mixture by liquid nitrogen with corresponding miscella separation, cutting girasol, drying it in a microwave field at preset process parametres as well as roasting it and mixing it with malt, impregnating the obtained mixture with separated miscella with a simultaneous pressure boost, releasing pressure until it equals the atmospheric pressure with simultaneous freezing of the mixture and its cryomilling in the medium of evolved nitrogen, pouring over the mixture with drinking water and saccharifying the mixture to obtain wort; adding brewer's yeast to the wort, performing incipient fermentation, afterfermentation and filtration.

EFFECT: reduced the process technology duration and improved foam stability of the target product.