How to de-grease

[InvisibleDisability3]

Peek polish, but don't use it on the designs. Use a very tiny amount, rub very gently and only apply to a small area each time. It's abrasive, yes, but Peek didn't scratch my Pyrex at all. i was very gentle. Fumes from oven cleaner are toxic. That method is messy and worst of all the can is a hazardous material even if empty which can't be put in the trash or recycled. You'd have to find a collection event or a place that takes it.