FIELD: food industry.
SUBSTANCE: invention relates to technology of manufacturing coffee substitutes. Method provides for preparing recipe ingredients, extracting medang by liquid nitrogen with corresponding miscella separation, cutting yacon, drying it in a microwave field at preset process parametres and roasting it, roasting grapes seeds, mixing yacon with grapes seeds, impregnating the obtained mixture by separated miscella along with raising the pressure and releasing pressure until it equals the atmospheric pressure along with freezing the mixture and cryomilling it in the medium of evolved nitrogen.
EFFECT: method enables to produce new flavoured coffee drink out of unconventional raw material according to nonwaste technology.
