Silverware and silver jewelry are usually made of sterling silver, which has a high content of the metal, but also has less expensive metals mixed in, too. Sterling silver is soft and vulnerable to tarnish by exposure to high levels of oxygen. Tarnish can build up over time and silver will appear dull and gray.
Make your silver sparkle! In a bowl, mix 1 tablespoon lemon juice, 1/2 cup instant dry milk, and 1 1/2 cups water. Place your silver in the bowl; let sit overnight. Rinse and dry thoroughly. Double or even triple this recipe if necessary to accommodate your silver.