I don't know what to tell you. Our glazed ceramic coasters work just fine.
It's environment dependent. I could use them in the winter when it's not very warm or humid.
But in the summer with the windows open a glass of ice water has a ton of condensation around it like the glass is leaking almost. Went through almost all types, plain plastic squares, then to cork, then to stone and finally the felt which actually work.
Maybe it's also dependent on what you put on them. Ours are almost exclusively used for mugs of tea.
Definitely, I'm assuming you drink that hot and hot drinks don't generate condensation. All you need is a heat barrier and ceramic is great for that no matter what kind of finish it has.
Mostly tea, but also wine sometimes. No condensation there either though since it's not chilled.
I don't know what to tell you. Our glazed ceramic coasters work just fine.
It's environment dependent. I could use them in the winter when it's not very warm or humid.
But in the summer with the windows open a glass of ice water has a ton of condensation around it like the glass is leaking almost. Went through almost all types, plain plastic squares, then to cork, then to stone and finally the felt which actually work.
Maybe it's also dependent on what you put on them. Ours are almost exclusively used for mugs of tea.
Definitely, I'm assuming you drink that hot and hot drinks don't generate condensation. All you need is a heat barrier and ceramic is great for that no matter what kind of finish it has.
Mostly tea, but also wine sometimes. No condensation there either though since it's not chilled.