Help please! I accidentally left a load of chains in the pickle pot and now they're all black. I tumbled them all night in the hope that they would clean up but they're still black. I've now reheated them with the torch and they're back in the pickle. It was interesting when I heated them that the flame was a very pretty bright green. Will they go back to normal or will I have to clean them all individually with a brush? I'm hoping I won't have to do that as I'm running very short of time now.