Abstract: A liquid food heating apparatus includes: a steam jet nozzle (36), a nozzle holder (18) to which the steam jet nozzle (36) is attached; a steam feed pipe (17), nozzle coupling means (14a, 14b, 14c) capable of coupling the steam jet nozzle (36) attached to the nozzle holder (18) to the steam feed pipe (17), and nozzle discard means (12b, 12c, 12d, 18c) capable of detaching from the nozzle holder (18) the steam jet nozzle (36) attached to the nozzle holder (18) and discarding the nozzle. The nozzle discard means detaches from the nozzle holder (18) the steam jet nozzle (36) attached to the nozzle holder (18) and discards the nozzle after releasing the coupling between the steam jet nozzle (36) attached to the nozzle holder (18) and the steam feed pipe (17).

Abstract: A fluid food heating device detects a temperature of stored water in a cistern through a temperature sensor arranged in the cistern, determines a steam jetting time by using the temperature as a water temperature of a computing equation for determining steam jetting time, and jets steam to a fluid food on the basis of the steam jetting time to heat the fluid food to a target temperature.