In article >,
Melba's Jammin' > wrote:

> > Good idea. Glide racks, in particular, will be ruined if they are
> > left in the oven during self-clean. And even regular racks will
> > lose their nice shiny finish.
> >
> > W.
>
> How will they be ruined?

If the slip fit is very fine, the racks can warp just a bit, perhaps
5-12 one-thousandths of an inch (read as 0.005 - 0.012 on a blue print).
But this bowing can press on the glide tracks of an oven to create
friction, thus impairing the glide.

jt