I've got some burnt copper cable for scrap and want to get a good price for it. I've been cleaning it with water from a hose while it's still hot and tried battery acid on it too. It finishes up clean, with that dull pinkish copper colour, but lots of the stuff I see at the scrap yard is bright and shiney. How do other sellers get it so clean and bright. Any ideas or am I being too fussy?
AL