Acetone is one product that can help with that. Once the lacquer is removed, reapply a new copper-specific lacquer after cleaning, or don’t, if a natural finish is preferred. If an unlacquered ...

Conditioning actually helps improve the performance of copper cookware, since it becomes more thermally efficient. Warm water, dish soap, and a cellulose sponge are best for cleaning copper cookware.

[Robert’s] first attempt didn´t work well as the copper didn’t stick well. He solved that by dipping the part in acetone ... We suspect it served to clean the part, an essential step in ...

To clean away the tarnish, you must first strip off the lacquer. You could use acetone or lacquer remover, but try this first: submerge the brass piece in very hot water for about five minutes.