I bought a cup on Etsy (that's in the likeness of the one John Dutton uses in the show Yellowstone.) It looks awesome but I noticed tiny pinholes in the glaze on the inside.
I know nothing about pottery but read a little online. The concern is that the holes are deep enough to connect to the inside of the cup and either draw water in or leach something out.
I guessed that if I were to weigh the cup, fill the cup with water for some time, empty and dry it, and weigh it again, then an increase in weight might confirm the issue.
I weighed the cup last night and it was 343.5 g. I left it filled with water overnight. I emptied and dried it thoroughly this morning. Now the cup weighs 360.6 g. That's a significant increase of 17.1 g.
But like I said, I don't know enough about pottery to know for certain. Is this normal for ceramic? Is there something I haven't considered?
I intend to use this cup daily and wasn't just looking to buy it for looks, unfortunately.
Below are images of the holes found in the glaze after opening.
|
|
|---|
