On 2006-07-26, Sheldon > wrote:

> I don't know, the one I have says nothing about silicone.

"Cooking parchment (also parchment paper, kitchen parchment,
greaseproof paper and cooking paper) refers to a form of
silicone-impregnated paper used as a substitute for parchment in
cooking. The silicone renders it grease- and moisture-resistant as
well as relatively heat-resistant. A common use is to eliminate the
need to grease cookie sheets and the like allowing very rapid
turn-around of batches of cookies in a commercial bakery. It can also
be folded to make moisture-proof packages in which food items are
cooked or steamed." (also known as en papillote)

http://en.wikipedia.org/wiki/Parchment

nb