[sgtnoodle]

What timescale are you talking about? I have a William Sonoma salt grinder, as well as one that my friend made for me. They're both about 5 years old. As far as I know there's no significant deterioration on either one. The grinding surfaces are ceramic.

[GrooveSAN]

Had usually some issues with (metallic) screws or other minor pieces after 1-2 years. Will take a look at ceramic grinders in the future.

[sgtnoodle]

I looked under my William Sonoma grinder today, and the metal screws and bracket near the ceramic grinder are in fine shape.