Glass kettle, glass teapot, glass cup. Why the emphasis on glass? Because tea is closer to wine than coffee when it comes to possessing a stunning array of colors, and no material conveys a gamut of hues better than clear glass.
Ours isn't just any glass, though. It is borosilicate glass: the kind used in labs. It won't shatter or crack no matter how high the temperature, nor will it cloud after prolonged use in the dishwasher. It will remain radiant and clear for many years of diligent service, rewarding its owners with cup after cup of beautiful tea. Dishwasher and microwave safe.