Removing Burnt Grease from Copper Bottom Pans?
There is a copper and stainless steel cleaner called revere. If you have a corningware store close to you. You can get it there. Also you can get it on Amazon.com: https://www.amazon.com/Revere-7-Ounce-Copper-Stainless-Steel-Cleaner/dp/B00080QDV2/?tag=thrif06-20