A frozen food dispensing machine comprising: (i) a product storage portion including a first volume of a product ; (ii) a freezing portion operably connected to the product storage portion ; (iii) a dispensing portion operably connected to the freezing portion , the dispensing portion configured to dispense a frozen food product ; (iv) a recirculation line operably connectable to one or more of the freezing portion or the dispensing portion ; (v) a product delivery line operably connected to the freezing portion , the product delivery line selectably connectable to: (a) the product storage portion for dispensing operations of the frozen food dispensing machine ; or (b) the recirculation line for a periodic heat treatment cycle; and wherein the product delivery line comprises a probe adapted for connecting and disconnecting to the product storage portion , wherein the probe contains a one-way valve adapted to prevent product flow from the product delivery line into the product storage portion , and wherein the recirculation line comprises a recirculation port adapted for connecting and disconnecting to the probe of the product delivery line ; and (vi) a heat treatment circuit for the periodic heat treatment cycle of a second volume of the product disposed at the heat treatment circuit , the heat treatment circuit including the freezing portion and the dispensing portion and omitting the product storage portion , the heat treatment circuit configured to circulate the second volume of the product via a pump through the product delivery line , the freezing portion , and the recirculation line ; and further comprising a conductive heater located at the freezing portion to heat the product that is disposed within the freezing portion . (i) a product storage portion including a first volume of a product ; (ii) a freezing portion operably connected to the product storage portion ; (iii) a dispensing portion operably connected to the freezing portion , the dispensing portion configured to dispense a frozen food product ; (iv) a recirculation line operably connectable to one or more of the freezing portion or the dispensing portion ; (v) a product delivery line operably connected to the freezing portion , the product delivery line selectably connectable to: (a) the product storage portion for dispensing operations of the frozen food dispensing machine ; or (b) the recirculation line for a periodic heat treatment cycle; and wherein the product delivery line comprises a probe adapted for connecting and disconnecting to the product storage portion , wherein the probe contains a one-way valve adapted to prevent product flow from the product delivery line into the product storage portion , and wherein the recirculation line comprises a recirculation port adapted for connecting and disconnecting to the probe of the product delivery line ; and (a) the product storage portion for dispensing operations of the frozen food dispensing machine ; or (b) the recirculation line for a periodic heat treatment cycle; and wherein the product delivery line comprises a probe adapted for connecting and disconnecting to the product storage portion , wherein the probe contains a one-way valve adapted to prevent product flow from the product delivery line into the product storage portion , and wherein the recirculation line comprises a recirculation port adapted for connecting and disconnecting to the probe of the product delivery line ; and (vi) a heat treatment circuit for the periodic heat treatment cycle of a second volume of the product disposed at the heat treatment circuit , the heat treatment circuit including the freezing portion and the dispensing portion and omitting the product storage portion , the heat treatment circuit configured to circulate the second volume of the product via a pump through the product delivery line , the freezing portion , and the recirculation line ; and <EOS>