FIELD: food industry.
SUBSTANCE: invention relates to technology of manufacturing coffee substitutes. Instant powder of flavoured coffee drink is obtained by extraction of black tea by liquid nitrogen with corresponding miscella separation. Prepared yacon is cut, dried in microwave oven till residual humidity about 20% at microwave field power providing warming of yacon inside the bits till temperature of 80-90°C during at least an hour and fried. Acorns are fried. Yacon and acorns are loaded together into cryomill in mass ratio 1:1. Obtained mixture is impregnated with separated miscella with simultaneous pressure boost till pressure level of nitrogen saturated vapours at impregnation temperature. It is followed by depressurisation till atmosphere pressure with simultaneous freezing of mixture and its cryomilling in medium of evolved nitrogen.
EFFECT: method allows to produce new flavoured coffee drink according to nonwaste technology.
