I use ketchup if I want to clean my brass its a little work but it cleans good and if it is real dirty add some salt and that seems take care of that just put some on a cloth or paper towel and wipe away then wash and let them dry of course .....works for me if I must have my brass shiny on the cheap. Maybe one day I can buy a tumbler but right now the wife thinks I have enough money invested into this money saving scheme