2. If there is a black silver film on the surface, 2 grams of salt, 7 grams of baking soda, 8 grams of bleaching powder and 60 ml of water can be used to prepare a "gold cleaner". Put the gold jewelry in a bowl, pour the detergent, take it out after 2 hours, rinse it with clear water (preferably not hard water), bury it in sawdust to dry, and then wipe it with a soft cloth.
3. Ring inlaid with gems Roll a piece of cotton with a matchstick, soak it in a mixture of toilet water and glycerin, scrub the frame, and then polish the ring with flannel. Never scratch with sharp objects such as blades.
4, salt and vinegar mixed into a cleaning agent, use it to wipe pure gold jewelry, can make it durable.
5. Toothpaste wiping or scrubbing with hot rice soup can also restore the luster of gold jewelry.