Line the glass pan with aluminum foil.
Heat a pot of water to boiling on the stove.
Sprinkle the aluminum foil with a generous amount of baking soda.
Place the jewelry on top of the aluminum foil.
Pour boiling water on top of the jewelry, completely covering it. Shake the pan slightly and allow the jewelry to sit in the pan for five minutes.
Remove the jewelry with tongs. Rinse it under cool water and dry with a towel.