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Most cooking times are worked out for a preheated oven. This is because different ovens may have different heating up periods because of varying insulation or element sizes. For recipes to be consistent for any possible oven, they cannot take all the possible variations for preheating into account, and therefore require that the oven is already at temperature before cooking starts.
When you are familiar with how long your oven takes to heat up you can experiment with the oven not fully heated before using, but note that this will not work with some recipes that require a quick change of heat.
If not preheating, set the timer for at least an extra 2 minutes. Ovens vary in cooking time even after preheating.
Check the recipe before cooking. Sometimes preheating is, and sometimes preheating is not, necessary.
If you need to cook something in the oven for a specific amount of time at a specific temperature, then it must be cooked at that temperature the WHOLE time. If it takes 10 minutes to preheat it to 300 degrees, and you put the food in WITHOUT preheating, you undercook it, and if you out the food in WHILE preheating, you end up overcooking it.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoBecause the food can be heated or baked faster
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Why do you pre-heat?
So the oven is at the correct temperature for cooking. As soon as you place the item in the oven it will begin the cooking process rather than waiting for the oven to warm up.
How long should you cook pizza on a pizza stone in a preheated 490 degree oven?
1year
Is it best to cook on the stove oven or crock pot?
It depends on what your cooking. If your cooking soup or stew you probably should cook it in a crock pot. But if your cooking brownies or a cake you should cook it in the oven for best results. If your cooking mac and cheese you should cook it in a oven.
Do you need a special oven to cook pastries?
I am guessing by hot oven you mean a preheated oven. Preheating is always done no matter what your cooking or baking, the reason for that is the time it takes to get an oven up to temp, your not going to put your product, especially during baking, into an oven that is trying to get to temp, because the temp changes affect the product your baking or cooking.Old cookbooks (my grandmother's Settlement House Cookbook from 1910, for example) did not give oven temperatures in degrees. They would tell you to bake something in a "slow", "moderate", or "hot" oven. It was assumed that you knew what this meant. I'm baking cookies from that book now and had to Google what a "hot" oven meant. It seems to equal about 400 to 500 degrees. A "slow" oven is 300 degrees, A "moderate" oven is 350 degrees.
What water temperature should be used when making pastry?
180oc in a conventional oven, 160oc in a fan assisted oven.
Will the pastry underneath cook in a meat pie?
yes it does. the pastry does cook underneath the mince. you should keep checking it though whilst its in the oven.
What happens to pastry during the cooking process?
It burns if you leave it in the oven to long. Ummm try putting cheese on the bread and leave it in there for at least 5 minutes. Unless you are lachtose entolerent but none of my business anyway.
What temp do you need to bake oatmeal cookies in?
To bake oatmeal cookies the temperature in your oven should be preheated to 375 degrees Celsius.
Should you cover baked beans when cooking in the oven?
i hope
Can you put filo pastry in the oven?
Yes, you should butter the individual sheets, then place in a filling and fold it, to cover it. Place in the oven until cooked.
Is it required to not put food inside the oven if preheat?
Yes, because the food will cook best in a preheated oven.
Can toaster strudels be cooked in a conventional oven?
Yes! Cook in oven preheated to 375 for 3-4 minutes.
