"Bob Pastorio" > wrote in message
...
> lid 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.
Dimitri