How to clean massage rocks?

There is a difference between cleaning stones and sanitizing stones. To clean and sanitize, I like to do the following:Have the water heated to above 150 degrees but not boiling. Add a few drops of joy dish detergent. It will cut the oil. Also add a sanitizer Bleach, or pool chlorine, or another appropriate sanitizer. Use a scochbrite pad only if you have a build up. Rinse and lay out to dry. To re-energize the stones you can place them out in the sun light and moon light. To store place in Epson Salt.