Hahabogus > wrote in
. 1:

> Wayne Boatwright > wrote in
> :
>
>> Yes, there usually is a warning, but those warnings usually describe
>> appearance changes to the plating on the metal. I don't recall ever
>> reading one that addressed damage to the temper or strength of the
>> metal.
>>
>>
>
> My current oven (purchased in the early 80's) has had the oven racks
> left in during the cleaning cyle for almost 2 decades. And aside for
> dis- colouring and a slight warping, nothing else has happened. Large
> turkeys, hams and lasagnas have been cooked with no problems. But it
> is difficult to change the oven rack to different positions due to the
> slight warping.
>

After a cleaning cycle, lightly coating the outside wires of the racks with
a small amount of cooking oil or shortening will make sliding the racks
into the oven wall grooves much smoother and easier.