Eva Teapot w/Glass Infuser 1LManufactured of borosilicate glass, and designed to absorb thermal expansion of temperatures from 40 C to +300 C. Brew your favourite tea in style. Clear glass allows the colour of the tea to show through as it steeps. Can be used without the infuser with a teabag or blooming tea, or for loose leaf blends in the glass infuser. Manufactured of borosilicate glass, the mug can absorb thermal expansion, and withstand temperatures from 40 C to +300 C