The acronym "EPNS" stands for "electroplated nickel silver." Jewellery and cutlery are commonly made from this material, which is copper or nickel that is coated with a thin layer of silver. Sulphur in the atmosphere, as well as in certain foods, tarnish the electroplated nickel silver over time. To keep your EPNS looking shiny and new, clean it regularly. You can easily maintain your cutlery or jewellery using common household items.
Cover the bottom and inner sides of a pan with aluminium foil.
Place the EPNS item into the pan, making sure it is touching the foil.
Boil enough water to cover the item.
Sprinkle some baking soda into the boiling water. Add 1/4 c. baking soda per quart of water.
Pour the water and baking soda mixture into the foil-lined pan and let it sit for about 15 minutes.
Rinse the item under cool water and dry it with a lint-free cloth.