I looked all over the internet this morning about how to clean my OXO pepper grinder, but couldn't find anything at all, except some nonsense video on "cleaning" it out by running rock salt through it before changing what you're grinding.
That's not a deep clean. What if you drop it in dirty dish water? If you're like me you would want to take it all the way apart for a proper deep cleaning.
So here you are. Hope this helps.
Comment below if you have any questions and I'll help out best I can.