This glass kettle is made of high-quality borosilicate glass, which is heat-resistant (from -10°C to +120°C). The transparent body is not only practical, but also allows you to easily monitor the cooking process. Do not boil or boil in an empty kettle. There should always be at least 200 ml of liquid to prevent glass cracks. It is recommended to use a soft sponge or cloth, do not use a steel brush or rough particles.