You're probably hearing the cooling fan that runs air over the control board to prevent it from over heating. This will stay on for a bit of time even after the oven is turned off.
Being able to turn itself off wouldn't do anything. The food would continue to burn because the heat stays in the oven for a while before dissipating.
To preheat a toaster oven, simply turn the temperature dial to the desired setting and allow the oven to heat up for a few minutes before placing your food inside.
go to norfolk, turn on oven
you just pack hot prepared jelly into hot jars that have been heated in oven 250% for an hour,put caps and rings on emmediately and turn jar upside down for five minutes then turn upside right,let set without disturbing until you hear them pop.wa-la their sealed.
To resolve the F2 error code on your Whirlpool oven, you can try the following troubleshooting steps: Turn off the oven and unplug it for a few minutes, then plug it back in and turn it on again. Check the oven's temperature sensor to ensure it is functioning properly. Inspect the oven's wiring and connections for any damage or loose connections. Reset the oven's control panel by pressing the reset button or turning off the power for a few minutes. If the error persists, contact Whirlpool customer service for further assistance or to schedule a repair.
You first need to get an oven. Then seal the oven door with silicon glue so no air can get out. Then turn on the oven, a few minutes later, turn the oven off. Since heat causes expansion of Air, it makes more pressure, and pressure causes heat. Then the heat causes expansion, expansion causes pressure, pressure causes heat. and the cycle goes on and on..........
How about you try heating the oven before you actually need it? For example, if your recipe requires you to cook something at 180 degrees, then turn the oven up to this temperature 20 minutes prior so that it's already warm when it comes time to use it.
you turn it on and set the heat then put it in the oven
turn the oven to the baking/cooking temp before you actually start putting stuff together - with the goal being the oven will be at full baking/cooking temp a couple of minutes before you're ready to put your stuff in.
You can bake this food at various temperatures. Its not the temperature that matters with this food. It is the time in which you cook it in. Shrimp should be cooked until they turn red or pink. Then they are done any longer and they will just get tough.
Uneven heating by microwaves inside oven. A turntable should help.
(7 * 45) + 70 = 385