Will frequent 500F baking hurt my oven?
I have a very ordinary electric range from Sears, 15 years old, works just fine--BUT--recently I've heard that the high temps needed for Lahey bread and Zuni chicken are causing damage. Any real reason to worry? Is the oven under any increased "strain" at 500 than at 350?
500 Degrees is harder on an electric oven than 350, but it has to do with the coils more than the over itself. Eventually, they all need some kind of coil service. I wouldn't worry about it as long as you are not leaving the oven at 500 for more than a few hours at a time. It can't be any harder on it than a self cleaning cycle. You might also want to check to be sure your oven it actually getting to 500 degrees if your recipe is that temperature sensitive. I would check with a thermometer. I find my electric oven runs colder by about 25 degrees to even 40 degrees -- and it can be worse if I open the door to look at it.