A machine for food waste processing, comprising: a power supply ; a control system coupled to the power supply ; a mixing drum defining a mixing chamber and having a volumetric capacity of 2000 litres or less; a mixing shaft having mixing blades extending from the mixing shaft , the mixing shaft being configured to rotate to move the mixing blades within the mixing chamber ; an ioniser coupled to the power supply and arranged to provide a source of air that is rich in reactive oxygen species; a heater and a fan coupled to the power supply and arranged to receive the source of air, the heater and fan cooperating to provide a source of heated gas rich in ionised oxygen to the mixing chamber , wherein the heated gas is between 50 and 70 degrees C and/or wherein the environment in the processing drum is heated to a temperature in the range of 50 to 70 degrees C; a motor arranged to draw power from the power supply and to drive rotation of the mixing shaft ; wherein the mixing drum defines an input aperture to receive food waste and an outlet to disgorge processed waste residue; wherein the control system is configured to operate the motor to drive the mixing shaft for multiple hours while monitoring operating parameters of the machine in order to produce a processed waste residue, optionally wherein the residue comprises or consists essentially of substantially dried and/or inert particulate; wherein the outlet is disposed in an outer wall of the drum at a position that is vertically above a position of the mixing shaft , and wherein the mixing shaft has at least one scoop coupled thereto, the at least one scoop being configured to carry processed waste residue to the position of the outlet . a power supply ; a control system coupled to the power supply ; a mixing drum defining a mixing chamber and having a volumetric capacity of 2000 litres or less; a mixing shaft having mixing blades extending from the mixing shaft , the mixing shaft being configured to rotate to move the mixing blades within the mixing chamber ; an ioniser coupled to the power supply and arranged to provide a source of air that is rich in reactive oxygen species; a heater and a fan coupled to the power supply and arranged to receive the source of air, the heater and fan cooperating to provide a source of heated gas rich in ionised oxygen to the mixing chamber , wherein the heated gas is between 50 and 70 degrees C and/or wherein the environment in the processing drum is heated to a temperature in the range of 50 to 70 degrees C; a motor arranged to draw power from the power supply and to drive rotation of the mixing shaft ; wherein the mixing drum defines an input aperture to receive food waste and an outlet to disgorge processed waste residue; wherein the control system is configured to operate the motor to drive the mixing shaft for multiple hours while monitoring operating parameters of the machine in order to produce a processed waste residue, optionally wherein the residue comprises or consists essentially of substantially dried and/or inert particulate; wherein the outlet is disposed in an outer wall of the drum at a position that is vertically above a position of the mixing shaft , and wherein the mixing shaft has at least one scoop coupled thereto, the at least one scoop being configured to carry processed waste residue to the position of the outlet . <EOS>