This is simply great stuff! While I have many copper pieces of my own, I use this mostly to polish antique copper items for my online store. I hadn't really thought of it until I was using it often, and now for some reason, it's getting difficult to find locally, (and more expensive). Until I found Wright's here, I'd gone back to using my old copper cleaners, and the first thing that struck me was that Wright's doesn't choke me with the smell of ammonia! It's virtually scent free, and pleasant to use. It works quickly, and is easy to use.