Thin plastic containers
We’ve all done it—thrown in a takeout container thinking it’ll be fine.
Sometimes it is.
Other times, it comes out warped like modern art.
Top rack helps. Skipping heat dry helps more.
Containers with paper labels
This one’s less about damage and more about chaos.
Paper labels peel off, float around, and clog the filter or drain.
It’s a small thing—but a messy one.
Gold flatware
Unlike stainless steel, gold-colored utensils don’t hold up well.
They lose their shine quickly, sometimes unevenly.
And then you’re stuck with a mismatched set that looks… off.
Sterling silver knives (with hollow handles)
This one’s oddly specific—but important.
The heat can loosen the adhesive inside the handle, causing separation.
It’s not something you notice immediately. But once it happens, there’s no easy fix.
Milk glass
A bit of a niche item, but worth mentioning.
Repeated dishwasher cycles can cause yellowing. It’s subtle at first—then suddenly obvious.
So… What’s the Rule of Thumb?
Here’s a simple way to think about it:
If it’s wood, delicate, coated, sealed, or sentimental, keep it out of the dishwasher.
Yes, it takes a little more effort. A minute here, two minutes there.