How long can my Thermos keep drinks hot/cold?

The length of time your Thermos can keep drinks hot or cold depends on various factors. In general, our Thermos products are designed to keep beverages hot for 12 hours and cold for 24 hours. However, the exact duration may vary depending on the starting temperature of the drink, the surrounding temperature, and how well you pre-heat or pre-chill your Thermos. For maximum insulation, it is recommended to fill your Thermos with hot or cold water for a few minutes before adding your desired drink. Additionally, make sure to tightly seal the lid and minimize opening it frequently, as this can affect the insulating performance. By following these guidelines, your Thermos will keep your beverages at the desired temperature for extended periods, ensuring you enjoy every sip.