NEVER, EVER dip jewelry in dip cleaners. Dipping jewelry in a dip cleaner WILL remove the tarnish but it also changes the patina of the piece. The silver will turn a white silver color....too bright for vintage jewelry. There are some pieces of silver jewelry, such as Native American jewelry, that have blackened details. If you dip your silver, these details will go away and you've just messed with the original patina. Also, some natural stones are porous and can be ruined by dip cleaners, especially pearls, opals, turquoise.