Method and device for controlling the grilling, or toasting, of a food product placed in a toaster or toaster oven that has heating elements, a heating chamber, a grilling selector for adjusting the level of browning of the food product, an element for stopping the supply of electricity to the heating...http://www.google.co.uk/patents/US6730888?utm_source=gb-gplus-sharePatent US6730888 - Bread toasting control in a toaster by response curve of photosensitive element(s)