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Old 02-06-2019, 12:05 AM
 
6,330 posts, read 3,559,365 times
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I only preheat for baking and haven't died yet.
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Old 02-06-2019, 12:05 AM
 
Location: Upstate NY
32,934 posts, read 9,718,124 times
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Preheating the oven serves the same purpose as bringing something to a boil, reducing the heat, then cooking for the specified amount of time.

Things have to be baked or cooked at a certain temperature for a certain period of time. Without preheating, part of that time would be used up just getting to the desired temperature.
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Old 02-06-2019, 12:34 AM
 
342 posts, read 73,424 times
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Quote:
Originally Posted by ndcairngorm View Post
Their instructions are a certain number of minutes at a given heat. When you put things in right away, how long do you allow for the oven to heat up? Obviously, the instructions can't give you variables like that. They can only give you instructions for when the oven is at the proper heat.

I'm talking here about something that just has to be heated up, not a cake or something that requires even temperature throughout. For that you really have to be more precise and not be heating up the oven at the same time as you are putting things in.

My oven takes forever to heat up. So I'd have to add 5 or 6 minutes to the cook time, maybe more, but then what about all the time it was sitting in the oven gradually getting warm? That changes things, yes? Your oven may heat up in 2 minutes flat. So the instructions on the box can't allow for those differences.

As I said, heating up chicken wings or something like that is not rocket science, so you can probably do just as you like. But just don't take the times given on the box as hard and fast.
Winner winner, chicken dinner. This guy hit the nail on the head. All ovens are not the same. Some take longer to heat then others. When instructions tell you 45 minutes at 350, preheat any oven to 350 and there's a good chance your meal will be done right.
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Old 02-06-2019, 04:49 AM
 
35,715 posts, read 13,649,690 times
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Baking bread, biscuits, cakes, cookies, ...- yes. The jolt of preheat can be critical to rising.

Roasting, reheating, baking casseroles, ... - probably not.

The only concern might be that the heating elements might end up burning the bottom of the casserole, etc. during pre-heating.
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Old 02-06-2019, 06:57 AM
 
12,302 posts, read 17,005,217 times
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Baking and cooking are basic chemical and physical reactions. Type of heat, temperature and application can have a major influence on the out come.
You want those wings crunchy and juicy - preheat. You want those cookies chewy - preheat. Do not think about biscuits without preheating.
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Old 02-06-2019, 07:52 AM
 
Location: SW Florida
9,545 posts, read 4,309,720 times
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I always preheat my oven. If a recipe says cook at 350 for 20 minutes the oven isn't going to be at 350 right away. I guess you could skip the preheating if you add time to the recipe or chicken wings or whatever you are cooking but what's the big deal with waiting 3-5 minutes to preheat?
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Old 02-06-2019, 08:24 AM
 
11,223 posts, read 4,546,937 times
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Quote:
Originally Posted by chiluvr1228 View Post
I always preheat my oven. If a recipe says cook at 350 for 20 minutes the oven isn't going to be at 350 right away. I guess you could skip the preheating if you add time to the recipe or chicken wings or whatever you are cooking but what's the big deal with waiting 3-5 minutes to preheat?
It's not a big deal at all. I was just curious why directions always say to preheat no matter what you're putting in the oven.
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Old 02-06-2019, 09:19 AM
 
Location: Houston, TX
13,969 posts, read 7,902,565 times
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"Does Preheating the oven actually serve a purpose?"

Yes. It preheats it.
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Old 02-06-2019, 09:23 AM
 
11,223 posts, read 4,546,937 times
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Quote:
Originally Posted by Scooby Snacks View Post
"Does Preheating the oven actually serve a purpose?"

Yes. It preheats it.
You're very clever
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Old 02-06-2019, 10:32 AM
 
Location: Savannah, GA
636 posts, read 368,903 times
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Just get an air fryer. Super easy and waaay better than the oven when it comes to wings.

To the OP's original question, it is just like heating up a cooking pan or pot before putting food in. Cannot quite cook in cold water or in a pan that needs heat...
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