From time to time silver jewelry or silver products take on a dark color. This method for cleaning these products is simple and all the ingredients you have in the kitchen.
The recipe for the mixture to clean silver:
In a small bowl or cup put the same amount of salt and baking soda. Then pour the hot water (enough to cover all jewelry) and close with aluminum foil. In most cases, the results are seen as jewelry drop into the pan. If the jewelry is almost black color, repeat the procedure. As soon as the water cools, reheat water and pour into a container with jewelry. Hold your silver jewelry for several hours in this mixture, then remove it and wipe with a cotton cloth.