Preserve your precious metals by keeping them secure in their protective container. If they are loose, be very careful while handling, cleaning and storing. Avoid unnecessary handling to avoid damaging them with your natural skin oils or by accidentally dropping them. Even latex gloves have powders and lubricants that can ruin precious metals. Place the precious metal coin, round or bar on a soft towel sitting on a sturdy surface. If you need to pick it up with your fingers, use the edge of the product to avoid damaging the design or smudging the face. Cleaning precious metals is rarely needed. If your metals are dirty, consider using a very mild soap and water solution, then patting dry. Any other cleaners risk ruining the surface of the metal.