On Wed, 17 Aug 2011 09:30:24 -0700 (PDT), Kalmia >
wrote:

>I saw one in a catalog - said you could save energy and bake many
>trays of cookies at once. But what about heat circulation etc?
>
>I guess they MIGHT be good for keeping a lot of food hot for a big
>holiday meal.....

I don't use them -- don't need them. When I buy a new oven, I order extra
shelves. I usually have four in the oven, with one holding a permanent pizza
stone.

-- Larry