How to get rid of the yellow on your jewelry

For the longest time I would just throw away my jewelry that would change yellow because I thought it was permanent. Well it's not!!! My husband looked it up online the other day and there is away to getting rid of the yellow. Get a bowl of very hot water and put half a spoon of salt and half a spoon baking soda. Let your jewelry sit for 15- 30 min. After that get a cloth or paper towel and rub where all the yellow parts are. Sometimes you have to repeat this 2-3 times to make it really new and shiney. Make sure that from now on you put your jewelry in a bag or container that it can't breathe air. The oils from your hands and leaving your jewelry out causes yelling. This can happen even to real silver and white gold.