Heat escaping, uneven baking, longer cooking times
I have a Neff double oven and have noticed in the last 5-6 weeks that food is taking longer to cook and baking has become uneven. There seems to be a fair amount of heat coming from the top of the bottom oven door. Will the seals need replacing? I've had the oven a few years now.
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Re: Heat escaping, uneven baking, longer cooking times
Either the seals need to be replaced, or you may have weak oven door hinges, and the door is not closing properly.
Only solution would be to replace both hinges if this is the case.
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You're actually referring to the "broiler" elements. Most electric ovens have these at the top of the main oven space. (Some gas ovens are set up the same way, but many put the broiler elements in a bottom drawer.)
As their name implies, broiler elements are active only when you're broiling. They will not go on for baking.
Broiling is the process of cooking food by exposing it directly to a high heat source at close range. To broil a steak, for example, you would place the pan holding the steak on an oven rack raised to the top or next to top position in the oven (consult the manual) and set the oven to broil. The top elements will then turn on and cook the meat by direct radiation.
Most people, however, use ovens for baking far more often than for broiling. Baking is the process of cooking food (cakes, casseroles, roasts etc) by indirect heat. In other words you raise the oven to a certain temperature, put the food on a rack more in the middle of the oven, and let the surrounding heat cook it over time. When you bake the top broiler elements usually don't come on at all.
There does seem to be a fault, as the fan should run continuously even when the element goes off at the required temperature setting, and the light should atay on as well.
It suggests to me that there is a fault with the oven thermostat, or it is wired incorrectly.
The top of whatever food you're cooking should be in the center of the oven for the most effective cooking. Do you have the oven set on bake or broil? Broil is a direct heat method and if the food is on the lower shelf and the oven is set on broil, the food is not getting enough heat to cook it properly. Baking heats the lower element and the heat rises to surround the food. Broiling heats the top element and since heat rises, it is not getting down to the food to surround it and cook it.
The heating element in top unit may be loose or burned out. Push the element toward the back and see if it engages. If it is already engaged, you'll need to replace it. It is simple to remove it.Just give a firm tug and it should come right out. To replace with a new element, simply push it in firmly.
With the bottom unit, are controls set for bake? If they are set for "broil" you are using direct heat and it will cook foods more quickly.Also, is bottom unit a convection oven? If so, foods will cook in 1/4 to 1/2 the time for a conventional oven, so you'll have to adjust your temperature down about 25-50 degrees and shorten your cooking time.
Well, your temp seems about right, but you may need to experiment. A good thermometer helps in gauging temp, ovens are notoriously inaccurate. All oven are different, but it is usually recommended to go down 25 (15C) degrees from the recipe if you use convection. The type of pan you use has an effect. Glass needs to be 25 degrees less, and nonstick/dark pans brown faster than the insulated type. Make sure that you fully preheat as well, or the bottom may burn. Other than that, convection cook times are less if the bake time exceeds 15 or 20 minutes. Thanks for your question, sorry I can't give a more precise recommendation.
I have a Whirlpool 30" oven. I've noticed that it seems to be taaking longer to cook the food, so I purchased a cooking thermometer. It appears that the temperature reading on the oven display is lower than the internal readin gon the purchased oven thermometer (275 vs setting of 350). Is this most likely a bad heat sensor or could it be the bake element?
I repair commercial cooking equipment for a living. When a customer complains about uneven cooking the #1 thing that these manufacturers ask is..... are they turning (180*) the baking sheets half way thru the cook cycle. #2 are they staggering the pans front to back & side to side. It's kind of a pain but, works for the commercial ones.
There are many reasons for uneven cooking in any oven
These are just a few possibilities.
Not pre- heating oven
Putting too much in the oven, thereby restricting air circulation.
Not putting on correct shelf level.
Use of foil in the oven which can reflect heat.
Badly fitting door.
Perished door seal.
Thermostat not controlling temp properly. Check with oven thermometer.
There plenty of other resons besides these, but these are some of the more important ones.
So do check these points..
If you are still experiencing problems, then you will probably have to call an oven expert in too look at it.
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