Accurate temperature measurement in household kettles

A vessel for preparation of heated water or other liquid based beverage or food comprising a container for the liquid, an electric heater for the liquid in said container, and a temperature sensing probe mounted through a wall of said container, said probe comprising an efficient heat transferring structure in direct thermal contact with and wet by the liquid based material inside said container, an electrical sensor within said probe in intimate thermal contact with said efficient heat transfer structure and whose electrical properties directly correlate with the temperature of said heat transferring structure, where said heat transferring structure is attached to a supporting structure that is mounted to said wall by an elastomeric efficient thermal insulating material held in compression to provide physical support for said probe and to seal said wall from leaking and to insure that said sensor is primarily thermally responsive to the temperature of said heat transferring surface and to the liquid but thermally insulated from variations in the temperature of said supporting wall of the container.