Tide and what else take tarnish sour silverplated items? Antique store people told me this a few years spinal column and...

Antique store people told me this a few years spinal column and I forgot what you had to the tide, baking soda or ???
Answers:    You pinch Tide or any powder detergent with Borax and put it within a bowl lined near aluminum foil. Pour boiling water over it and put the silver contained by. The tarnish adheres to the aluminum.
Im thinking bleach