Dimitri wrote:

> "Bob Pastorio" > wrote in message
> ...
>
wrote:
>>
>>
>>>On 20 Oct 2003 16:29:08 -0400, Don Saklad >
>>>wrote:
>>>
>>>
>>>>Would there be any advantage using aluminum foil in the oven on pans by
>>>>placing the foil dull side up?...
>>>>
>>>>So far with respect to the question, resources explaining this do not
> > give technical reasons for their explanations.
>>>
>>>Shiny side reflects more heat than the dull side.
>>
>>Shiny side reflects *light* less diffusedly than the dull side. Heat
>>isn't reflected.
>>
>>Pastorio
>
> Except for radiant heat which is reflected.

From a heat source that glows - lamp, rod or flame. I don't think
that heat radiating from a hot oven wall will be reflected.

Pastorio