If 925 silver has oxidized, you can use the following methods to restore its luster:
The Silver Polishing Cloth Method: Wrap the silver jewelry with a silver polishing cloth and rub it repeatedly several times to remove surface oxidation and restore its original color.
The Coke Method: Soak the silver jewelry in cola for a while. The oxidation will gradually fall off. Then remove the silver jewelry and rinse it with clean water.
The Toothpaste Method: If the silver jewelry is severely oxidized, use toothpaste. Apply a small amount of toothpaste to the surface of the silver jewelry. Use a toothbrush dipped in water to repeatedly scrub it. After scrubbing thoroughly, rinse with clean water and wipe dry with a cotton cloth.
The Silver Washing Water Method: If the silver jewelry is severely oxidized, consider using silver washing water. Immerse the silver jewelry in the silver washing water for 5 seconds, then rinse the surface with detergent, making sure no silver washing water remains. Dry the surface with a paper towel.
