When you have burnt-on gunk on any surface that can scratch - enamel on stovetops or cookware, stainless steel finishes, polished granite, formica, and even glass
, DO NOT USE anything metal to clean them - not razors, or steel wool, or metal spatulas. Use a credit card to scrape them off! I read this somewhere years ago, it has consistently performed miracles when nothing else would work, and it has never
scratched anything! Great way to recycle those worthless gift cards!
I hope that this will help others to get rid of gunk stains without putting the finish in peril.