Today’s invention is a device which can be used in any oven to minimise the amount of time for which the oven door is open. Every such opening wastes huge amounts of energy and makes the kitchen more like a sauna.
The device is in the form of an insulated hinge device which grips the bars of one of the horizontal dividers. The other end of the device clips onto a baking tray. A small radio-controlled motor opens and closes the hinge (reflecting user-selected amplitudes and frequencies).
This has the effect of repositioning the food items in the tray in order to achieve uniform cooking, without the potential for burning one’s wrists.
A more advanced system could be equipped with a temperature probe capable of oscillating the food in response to the readings taken.
Actually, a clockwork mechanism released by an electronically controlled lock might be best.