A milk pasteurizing unit having a force fluid convection chamber which is adapted to hold a milk product mass therein. There is an ejection nozzle which is in communication with a pressurization device such as a pump which forcefully ejects a nozzle over a separator plate which separates the milk product mass from a direct heat source such as a combustion chamber. The force convection of the milk prevents scalding of the same and allows for a more rapid heat transfer from the heat source to the milk product mass.