Jet hot warranty
Try polishing them up with anti-sieze and a heavy terrycloth towel section, to clean them up.
It works nice on Chrome Headers with a few flaws, should work on the Jet Hot ceramic finishes too.
20 years is a lot of time to have the elements sitting on those ceramic finishes. Have to take care of them and wax them up once in a while.
Just like a very light rubbing compound on your 20 year old paint job to clean it up and make it shine again.
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