Matters Needing Attention 1. Please handle bottle with care since it is made of glass and is very sleek, use sleeve to carry it. 2. Better to put bottle on desk when pouring very hot water instead of holding it with bare hands to avoid burns. 3. Do not pour hot water into bottle immediately after pouring cold water . 4. When putting in ice cubes, better to tilt the bottle a little, and please put the ice cubes on the bottle neck to let them slide down along the inner bottle wall. 5. Please do not put the bottle into the freezing room which full of water to avoid cracking due to lack of space when water become ice.