A device for frothing a liquid food, particularly milk, having a pump for the liquid food from a reservoir, a continuous-flow heater, at least one throttle and one air supply, with the throttle and the continuous-flow heater being arranged at the pressurized side of the pump (2), and the air supply for supplying air into the flow path of the food being arranged upstream from the throttle. In a cold froth mode a flow path for the food-air mixture is pre-determinable through a throttle (4a) having a first throttle cross-section, and in a warm froth mode a flow path for the food-air mixture is through a throttle with a second throttle cross-section, arranged at the pressurized side of the pump (2), as well as through the continuous-flow heater, with the first and the second throttle cross-section being different. A method for frothing a liquid food, particularly milk, is also provided.