FIELD: food industry.
SUBSTANCE: invention is related to food industry, namely to technology of coffee substitutes production. Method involves preparing recipe ingredients, cutting yacon, drying it in microwave field until its residual moisture content is about 20% with the microwave field power heating yacon to 80-90°C inside the bits for 1 hour minimum and roasting yacon, roasting rye grain, mixing yacon with rye grain in mass ratio 7:3 and cryomilling the obtained mixture in liquid nitrogen.
EFFECT: method enables to produce a new coffee drink out of unconventional raw material according to nonwaste technology.
