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

FIELD: chemistry.

SUBSTANCE: lime peel is mixed with hop in mass ratio of 1:10. The obtained mixture is extracted with liquid nitrogen with separation of the corresponding miscella. Girasol is cut and dried in a microwave field with given parametres of the process and roasted. Girasol and malt are mixed in mass ratio 1:(10-25) and the obtained mixture is saturated with the separated miscella with simultaneous increase of pressure. Pressure is decreased to atmospheric pressure level with simultaneous freezing of the mixture and cryogenic grinding in a medium of released nitrogen. Drinking water is poured and saccharification is carried out to obtain wort. Brewing yeast is added and primary fermentation, fortification, after fermentation and filtration are carried out.

EFFECT: invention shortens duration of the process and increases foam stability of the end product.