How to use baking soda to clean silver jewelry

We know that as time goes by, silver jewelry becomes oxidized as a result of a chemical reaction with sulfur-containing substances present in the air, Baking soda activated by boiling water in the presence of aluminum, will dislodge the tarnish by making it bind with the aluminum, leaving the sterling silver clean and shiny again. This is the simple, organic way to clean and polish your sterling silver jewelry.
I will show you how to do that , it will be helpful to you .Lining a baking dish with crinkled aluminum foil. Begin by boiling water on the stove. The water will be used later on during the cleaning process.You'll want to make sure the silver pieces are touching the aluminum foil. So put the silver jewelry on the top of the foil. The baking soda should be poured evenly over the silver jewelry, but be careful not to use too much.. Pour only enough of the boiling water to completely submerge the jewelry. Use any type of wood or plastic utensil to carefully push or roll the silver jewelry around. Making sure is not melt. Now it's time to remove the jewelry from the dish and rinse it with water to make sure it's free of baking soda. Finally you can dry the jewelry off with a soft towel and polish if you wish to do so.
You need pay attention that the baking soda method of cleaning can only be used for jewelry that is all sterling silver and those that incorporate plastic, glass or crystal beads. Some gemstones are affected by the baking soda reaction--for example, turquoise.