If your jewelry is tarnished, try some following tips
Soft cloths and silver polish
When you use polish, make sure you wash the item off in sudsy water and then run it under water.
Aluminum foil and baking soda
Place your sterling silver inside and add boiling water along with a cup of baking soda and a pinch of salt. After the silver soaks for a few minutes, the tarnish will jump from the jewelry to the foil.
Toothpaste
Toothpaste with baking soda is another common household item that you can use to clean sterling silver. Coat the item in toothpaste and rub it with a soft cloth. Rinse it under warm water and dry. If you decide to use a toothbrush, make sure it is one with extra-soft bristles.