Hot 26 hours. Cold 36 hours.
Built for Life™ is the motto of the finest unbreakable, vacuum bottle made. Constructed with Char-Vac technology that combines vacuum insulation and a protective charcoal barrier to provide superior temperature retention and durability. The double wall vacuum insulation keeps liquids hot or cold for hours. Fully rustproof with components made of 100% stainless steel. Double wall 8 ounce stainless steel cup screws to an easy pour stopper (just turn to pour). Heavy duty handle folds flat and the wider mouth makes for ease of cleaning and adding ice cubes. Lifetime Warranty.