Qwetch's Insulated Bottle - Glacier Collection keeps liquids hot for up to 12 hours and cold for up to 24 hours. Double wall: interior and exterior in 304 stainless steel and without coating or varnish (unlike aluminum containers) and the end of the cap is also in 304 stainless steel. This insulated bottle does not alter tastes or flavors. Qwetch worked with the talented photographer JC Pieri for an unprecedented rendering: a photo of a glacier reproduced on the bottle coupled with a mattifying effect. Frozen beauty It is advisable to clean before each use, with hot soapy water and / or baking soda. Use a non-abrasive backing. Dry upside down and store with the container open. Do not put in the dishwasher, microwave, traditional oven or freezer. Caution, hot liquids or foods can burn: use the product with care. Do not exceed the filling capacity. Fill to below the screw thread. To avoid splashes and leaks, properly and completely close the cap / cover to ensure the product is watertight. Transport in an upright position is recommended. Frictions, shocks / falls, etc… can damage the product.