This document is about the instructions for using the Reflect glass kettle. The document provides important usage precautions, such as avoiding striking the glass body on the tap, emptying the water after boiling to clean any manufacturing deposits, descaling according to the water hardness in the area, and emphasizing safety issues such as pouring water slowly to prevent scalding, and the different performance of fast boil kettles. The document also provides safety advice, including locating the kettle on a firm, flat surface, away from the edge of the worktop, not using it outdoors or in a bathroom, and not placing it on a metal tray or surface.