How to Keep Water Cold in a SubZero Stainless Steel Water Bottle

Stainless steel is a good conductor of thermal energy, which means that any water inside will quickly warm up if the bottle is not properly protected form heat. You must keep your steel water bottle well insulated. Foam thermos cozies and coolers will protect your water bottle from direct sunlight and maintain the water's cold temperature. With a little planning and care you can keep a stainless steel bottle of water cold all day.

Instructions

    • 1

      Close the SubZero bottle as tightly as possible and place it in the freezer for one hour or the refrigerator for 2 to 3 hours if your freezer is full or unavailable.

    • 2

      Place steel water bottle in a cozy or wrap it in a few layers of paper towels. This will help insulate the bottle and help the water stay colder.

    • 3

      Remove the lid of the water bottle only to take drinks. Replace the lid tightly when you are done drinking from it and move the bottle out of direct sunlight to maintain the water's cold temperature. A backpack is a great place to keep your bottle, as it keeps it shielded from sunlight and insulated from ambient heat. Keep the water bottle away from your body (especially while active) to prevent the bottle from absorbing body heat.