Let's start with the top 3 winners!
Salt, Vinegar, and Flour - In a bowl I mixed together 1 cup vinegar, 1 Tablespoon salt, and added flour mixing it together to make a paste. Mine was a bit runny as you can tell. I let it sit on the copper for 1 hour. You could almost see it working immediately though.
Have a question about this project?
If the goal here is to clean the copper, there is a product called Bar Keepers Helper that cleans copper very well and very quickly. Also does a great job on other surfaces such as stainless steel and enamel surfaces.
After cleaning copper pan will it leave green imprints on counter tops if set on it when wet? Mine did.
Why would you just use this brand called “barkeepers friend” it’s fast and easy.