Eli5: Why shouldn’t you put home made ceramics (a mug, for example) through the dishwasher? If they can withstand the heat of a kiln, surely a dishwasher is fine?

Question

I mean, I put them through the dishwasher sometimes anyway, but I’m told I shouldn’t? 🤷🏻‍♀️

In: 5331

Answer 1

It depends on the ceramic, some are dishwasher safe and some are not. Fully vitrified clays (fired at a high temperature) don’t absorb water and are dishwasher safe. Some ceramics are fired at a lower temperature, are porous, and are not dishwasher safe.