While washing, do not allow silver to come into contact with a stainless steel or metal sink, which can cause scratching, Herman says. Always be sure to line your sink with a plastic basin or a soft, clean cloth or towel. For more heavily tarnished pieces of silver flatware, or silver jewelry, make your own antitarnish contraption. Step 1:. It is particularly useful for frequent cleaning of silver utensils. Take some hot water and pour it into a bowl. Squeeze the juice of a lemon into the bowl. Add three tablespoons of salt. Place the silver item you are cleaning into the water and let sit for five minutes. Remove it and clean by rubbing it with a soft cloth to remove tarnish.