If the piece is only moderately dirty, it should be pretty clean after fifteen minutes. [3] X Research source
If you are using the kitchen sink, it is a good idea to leave the sink strainer in place.
If you see debris floating around in the solution, you know it is working. If your kitchen sink has a high pressure washer, you should use it. However, remember to leave the sink strainer in place and don’t let go of your jewelry.
Using baking soda at the end with a toothbrush will allow you to get into the cracks and other tough to reach spots.