Abstract: A heater to heat a container within which food is to be cooked. The heater includes a flexible elongated base that is to at least partly surround the container periphery, so that the heater can be urged towards the periphery. A heating element is attached to the base of the container to enable the heating element to be in thermal contact with the periphery. An elongated power conduit is connected to the heating element to provide for the connection of the heating element to a source of electric power so that upon electric power being delivered to the heating element, the heating element can heat the container.

Abstract: A heater to heat a container within which food is to be cooked. The heater includes a flexible elongated base that is to at least partly surround the container periphery, so that the heater can be urged towards the periphery. A heating element is attached to the base of the container to enable the heating element to be in thermal contact with the periphery. An elongated power conduit is connected to the heating element to provide for the connection of the heating element to a source of electric power so that upon electric power being delivered to the heating element, the heating element can heat the container.

Abstract: A cooking device comprising: one or more heating elements for heating a fluid; and a control system configured to: control the one or more heating elements for a first period of time in order to heat the fluid to a first temperature; control the one or more heating elements for a second period of time such that the temperature of the fluid falls to a second temperature; and control the one or more heating elements for a third period of time to increase power supplied to the one or more heating elements relative to power supplied to the one or more heating elements during the second period of time.