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

FIELD: chemistry.

SUBSTANCE: invention relates to the food industry, particularly to beer brewing technology. The method involves mixing anise and hop, extraction of the obtained mixture with liquid nitrogen with separation of the corresponding miscella, cutting girasol, drying in a microwave field at given process parametres and roasting, mixing the girasol with malt. The obtained mixture is saturated with the separated miscella while simultaneously increasing pressure. Pressure is reduced to atmospheric level while simultaneously freezing the mixture which undergoes cryogenic grinding in the medium of the released nitrogen. Sugar is added. Water is added and saccharification is carried out to obtain wort. Brewing yeast is then added and primary fermentation, after fermentation and filtration are carried out.

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