FEW laboratory devices have achieved the popularity of the vacuum flask. Since Sir James Dewar designed it for the purpose of preventing his liquid air from rapid evaporation, the flask has become ...

Discover the Firelight Flask: premium 18/8 stainless steel construction, magnetic tumblers, and 24-hour insulation. This ...

Eventually he designed a double-walled glass flask and removed the air from the space between the two walls, creating a vacuum. Liquid put inside the flask stays at the same temperature because ...

Lifeventure’s TiV vacuum flask offers excellent value for money as a budget-friendly option, while Klean Kanteen flask is ludicrously good at keeping drinks hot and cold for many, many hours.