Author Topic: Trying to understand the science of applying heat from above  (Read 1580 times)

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Offline enchant

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Trying to understand the science of applying heat from above
« on: August 29, 2006, 11:38:16 AM »
In another thread, I've talked about my miserable failure cooking a pizza in a grill over a campfire.  One suggestion was that perhaps I need to erect a "roof" of quarry tiles above the pizza to apply heat from above.  I'm certainly not doubting that.  I just don't understand it.

In my oven at home, I cook the pizza on the bottom rack and there is a lot of open space (14") above it, but it cooks just fine.  Why would having stone a few inches over it help?
--pat--


Offline varasano

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Re: Trying to understand the science of applying heat from above
« Reply #1 on: August 29, 2006, 12:01:38 PM »
If you click on the globe under my name, I have a long piece on the oven temperature distribution and how to combat uneven temperatures, such as your grill problem. See section "4- The Oven"
« Last Edit: August 29, 2006, 12:03:22 PM by varasano »

Offline enchant

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Re: Trying to understand the science of applying heat from above
« Reply #2 on: August 29, 2006, 03:45:28 PM »
Thanks.

I read through section 4 a couple of times, and although there's some good information there, I don't see where you touch on the practice of putting a tiled roof over the pizza. 
--pat--

Offline varasano

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Re: Trying to understand the science of applying heat from above
« Reply #3 on: August 29, 2006, 04:26:06 PM »
foil is your friend. forget the tile.

Offline Harv

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Re: Trying to understand the science of applying heat from above
« Reply #4 on: August 30, 2006, 09:43:21 AM »
I did not read the other thread you mention, but I would guess there may be a problem in retaining heat in the grill when you open up the top.  Your oven at home likely recovers from door opening more quickly than a grill.  Grills also tend to have many gaps that heat can escape from as well.  The tile above the pizza will serve as a heat source that will stay hot even if the top is opened for a while.  The closer to the tile your pizza is the faster it will cook.

Offline enchant

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Re: Trying to understand the science of applying heat from above
« Reply #5 on: August 30, 2006, 10:07:37 AM »
Ok - that makes sense.

I was hoping to do more tests this weekend, but tropical storm Ernesto is threatening (Boston area).  And I really don't want to do this in the rain again.
--pat--


 

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