A frozen food dispensing machine includes a product storage portion including a first volume of product and a freezing portion operably connected to the product storage portion. A dispensing portion is operably connected to the freezing portion to dispense a frozen food product and a conductive heater is located at a heater location of the frozen food dispensing machine to heat a second volume of product in the frozen food dispensing machine. A method of performing a heat treatment cycle on a volume of product in a frozen food dispensing machine includes defining a heat treatment circuit including the freezing portion, heating the volume of product to a heat treatment temperature within a first time duration via a conductive heater located at the freezing portion and holding the volume of material at the heat treatment temperature for a second time duration.