An actively heated or cooled dishware or serverware device (100; 400; 600), comprising: a body having a receiving portion configured to hold food; and a heating or cooling system (55; 455; 655), comprising: a heating or cooling element (60; 460; 660) configured to heat or cool the receiving portion of the body, wherein the heating or cooling element (60; 460; 660) is operable to actively heat or cool at least a portion of the body to maintain the food in a heated or cooled state, control circuitry (94; 494; 694), one or more energy storage devices (80; 480; 680) electrically connected to the heating or cooling element (60; 460; 660) through the control circuitry (94; 494; 694), the control circuitry (94; 494; 694) configured to manage the power delivered to the heating or cooling element (60; 460; 660), and the dishware or serverware device (100; 400; 600) characterised in that the heating or cooling system comprises: a wireless power receiver (92; 492; 692) configured to wirelessly receive power from a power source, the wireless power receiver (92; 492; 692) being in communication with the one or more energy storage devices (80; 480; 680) and configured to charge the one or more energy storage devices (80; 480; 680); and a sensor that senses the orientation of the dishware or serverware device (100; 400; 600) and communicates the sensed orientation to the control circuitry (94; 494; 694), the control circuitry (94; 494; 694) configured to discontinue power to the heating or cooling element (60; 460; 660) when the sensor senses the dishware or serverware device (100; 400; 600) has been turned on its side. a body having a receiving portion configured to hold food; and a heating or cooling system (55; 455; 655), comprising: a heating or cooling element (60; 460; 660) configured to heat or cool the receiving portion of the body, wherein the heating or cooling element (60; 460; 660) is operable to actively heat or cool at least a portion of the body to maintain the food in a heated or cooled state, control circuitry (94; 494; 694), one or more energy storage devices (80; 480; 680) electrically connected to the heating or cooling element (60; 460; 660) through the control circuitry (94; 494; 694), the control circuitry (94; 494; 694) configured to manage the power delivered to the heating or cooling element (60; 460; 660), and the dishware or serverware device (100; 400; 600) characterised in that the heating or cooling system comprises: a wireless power receiver (92; 492; 692) configured to wirelessly receive power from a power source, the wireless power receiver (92; 492; 692) being in communication with the one or more energy storage devices (80; 480; 680) and configured to charge the one or more energy storage devices (80; 480; 680); and a sensor that senses the orientation of the dishware or serverware device (100; 400; 600) and communicates the sensed orientation to the control circuitry (94; 494; 694), the control circuitry (94; 494; 694) configured to discontinue power to the heating or cooling element (60; 460; 660) when the sensor senses the dishware or serverware device (100; 400; 600) has been turned on its side. a heating or cooling element (60; 460; 660) configured to heat or cool the receiving portion of the body, wherein the heating or cooling element (60; 460; 660) is operable to actively heat or cool at least a portion of the body to maintain the food in a heated or cooled state, control circuitry (94; 494; 694), one or more energy storage devices (80; 480; 680) electrically connected to the heating or cooling element (60; 460; 660) through the control circuitry (94; 494; 694), the control circuitry (94; 494; 694) configured to manage the power delivered to the heating or cooling element (60; 460; 660), and the dishware or serverware device (100; 400; 600) characterised in that the heating or cooling system comprises: a wireless power receiver (92; 492; 692) configured to wirelessly receive power from a power source, the wireless power receiver (92; 492; 692) being in communication with the one or more energy storage devices (80; 480; 680) and configured to charge the one or more energy storage devices (80; 480; 680); and a sensor that senses the orientation of the dishware or serverware device (100; 400; 600) and communicates the sensed orientation to the control circuitry (94; 494; 694), the control circuitry (94; 494; 694) configured to discontinue power to the heating or cooling element (60; 460; 660) when the sensor senses the dishware or serverware device (100; 400; 600) has been turned on its side. a wireless power receiver (92; 492; 692) configured to wirelessly receive power from a power source, the wireless power receiver (92; 492; 692) being in communication with the one or more energy storage devices (80; 480; 680) and configured to charge the one or more energy storage devices (80; 480; 680); and a sensor that senses the orientation of the dishware or serverware device (100; 400; 600) and communicates the sensed orientation to the control circuitry (94; 494; 694), the control circuitry (94; 494; 694) configured to discontinue power to the heating or cooling element (60; 460; 660) when the sensor senses the dishware or serverware device (100; 400; 600) has been turned on its side.