??? You're not supposed to soak them, just spray them. I never heard of them swelling before.
Quote Originally Posted by bluesman7 View Post
Be aware that the Naniwa stones swell a little from absorbing water. So if you use the stone and then use the stone again later that same day, you will notice the center is higher when you lap it. If you lap it flat that way, then let it dry completely it will show a dish. It's not a big deal if you know to expect it.