a method for sensing overheating of a food container positioned on a glass ceramic cooking hob , for example during the preparation of a food contained in said container , electrical heating elements being provided for predefined regions of said hob . the method includes continuously measuring the variation in temperature of the region of the cooking hob during the activation of a corresponding heating element on which the container is positioned on the hob . the method further includes halting said activation when said temperature undergoes a sudden increase relative to a temperature value maintained substantially constant with time during activation of the heating element .