this post was submitted on 04 Oct 2025
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Oh I definitely put them in the dishwasher… there are certainly some things I don’t put in there, like knives and non-stick pans, but if I can put them in there, I do. Maybe that’s my problem. Sigh, another thing to handwash maybe!
I always hand wash old pyrex. They were designed before dishwashers were a ubiquitous household appliance, and so the finish can't take the stress. Same with vintage pyrex mixing bowls - if you wash them in a dishwasher, eventually they'll lose their finish and strip down to the paint, making them feel like a chalkboard.
That's your problem. We had the same cup, faded after like 2 years. We replaced it and started handwashing, I think it's in year 6 now
Dang it! 😅
This one is probably older than six years, but it also replaced an identical one that also lost its printing over time, hence why I decided to ask here.
Thankfully we have a pretty good handwashing setup for the things we do not put in the dishwasher; I’m just not eager to add to the list.
You could buy some acrylic markers and try baking the vessel with the new marks for an hour at 375 F.
You might want to work your way up to the temp over a few hours to prevent shattering.
Also, you could put the glass on a sheet and cover with a mixing bowl up keep the heat more consistent.
I say 375 due to temperature discrepancies in ovens and temperature swings.
The glass could still break, but if you are throwing it away anyway, what does it matter?
Either type of glass used for these should be fine in the oven up to 450°
They sell it as dishwasher safe, it's not your fault. But yeah haven't had a problem since we stopped heh. Good luck!