Baking soda for silver polish... works like magic! I just did it to all my silver jewelry and now it all looks brand new, took less than 10 minutes!
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How to Clean Silver the Easy Way! - Place aluminum foil in the bottom of your sink and run HOT water. Add 2 Tbsp of salt in the water and your silver. Leave for 2-3 minutes and the tarnish will be gone. Repeat for badly tarnish or loosly wrap aluminum foil around the silver before putting in the hot water. Larger pieces will require more salt.
Once a month, add a cup of Distilled White Vinegar and a cup of baking soda during the HOT cleaning cycle. pour them directly into the drum. Then, add about ½ cup of vinegar and ½ cup of baking soda into the detergent dispenser.