1>Could we use teapot on fire directly?
Of course,they are made of heat resistant borosilicate glass,can resistant -20 to 150°c,very safe to be put on fire directly.And we also supply kinds of warmers to match teapots.
2>Could we put teapot into microwaver?
3>Could we use the diswasher to clean it?
Of course,safe diswasher.
4>Could we sell them as set with cups?
Yes,we have kinds of double or single wall cups,or with saucers to match glass teapot.
Pls contact Ms.Rain Gao freely: