I believe many people like to use toothpaste, and an old toothbrush or soft cloth and water.scrub lightly and rinse well.

But I use a natural stone cleaner cream . Here are a few of the many thing´s it clean´s Silver, Gold, Bronze, Copper, Brass, Stainless Steel. Get´s rid of Limescale. great for the bathroom. get´s rid of dirt & grime ,it has so many use´s it even clean´s windows . the rain just run´s right off the window´s hard to believe, but it clean´s very well. Also it save´s on buying so many different product´s for cleaning & is last a long time. little on a sponge wipe &rinse or wipe with a damp cloth . www.promonov.com on this web site you will see the product I use, you might find something similar in your local hardware store or in one of the big shopping store´s but it´s the best thing since sliced bread , and I don´t know why it´s not popular yet……