One month ago I bought a set of stainless steel cookware from Cuisinart. Today I noticed that the smallest pan is not flat - the base has bended so that the center is a little lower than the edgees.

That made me wonder what could have caused it? I was quite watchful to wash it only after it cools down a bit (though I'm not sure how my girlfriend was). Can overheating cause that too? Or heating without oil? (my girlfriend uses it to toast toasted bread)

marked as duplicate by rumtscho Jun 27 at 7:20

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