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

Person who heavily supports local potter’s here, everyone should! Stop buying commercially made ceramic! I put all mine through the dishwasher, they’re perfectly fine after many washes. Almost all food safe ceramic is fired at high enough temp that it doesn’t matter they won’t take in any moisture from a dishwasher. And to be food safe they have to be glazed aka protected. Some glazes are weird but I don’t know a respectable potter who would lable ceramics glazed with those as food safe.