Does this flask really keep your drink cool?
This water bottle is no match for a stainless steel flask, which can keep a drink cool or hot for hours on end.That's simply because plastic doesn't have that capacity.Nonetheless, after several attempts, our engineers have achieved conclusive results.At a room temperature of 22°C, we tested the drink in the bottle, and it took 3 hours to go from 5 to 15°C.At that temperature, it is still considered cool.
