Place aluminum foil in the bottom of a baking pan. Place the shiny side of the foil facing up. Choose the baking pan size based on the amount of sterling silver you need to clean.
Lay the sterling silver flat on the aluminum foil. Do not overlap the silver pieces or allow them to touch each other.
Fill a large pot with water. Bring the water to a boil. Boil enough water to cover all the silver.
Add 1 tbsp. salt and 1 tbsp. baking soda to the boiling water. You can also simply sprinkle the baking soda over the silver pieces, and then pour the boiling water into the baking pan.
Pour the boiling water over the sterling silver. Pour it carefully into the baking pan. You do not need to use all of the water, but you do need to cover the sterling silver completely.
Allow the sterling silver to soak until the water cools. The heat from the water will loosen the dirt.
Remove the silver from the baking pan. Rinse the sterling silver with cold water. Place the silver on a soft towel to allow it to air-dry.