Of course, you need to be extra careful, although these teapots are made of strong safety glasses that can withstand heat and pressure.
I love glass teapots because they usually look more elegant. Aside from that, preparing tea in a glass teapot eliminates the metallic taste that other teapots leave.
1 - The glass material must be heat resistant, of course.
2 - Check the spout. It must be well-formed.
3 - Make sure they retain heat well. Most glass teapots don't.
4 - The teapot must be pretty. It's one of the reasons you'll be going for the glass teapot, right?
Borosilicate glass is resistant to thermal shock. It is the kind of glass used for test tubes, beaker and other laboratory equipment. So, if you're looking for a thermally durable glass teapot, go for the one made of borosilicate glass.
