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 ...

Insulated vacuum flasks (aka "thermoses") may keep liquids warm for a while, but they do have their limits. The Kimos flask addresses this shortcoming by heating the water within it to a boil ...

The Parkside Flask 750 stores a full bottle's worth of wine between two removable wine tumblers, keeping it at proper temperature with a rugged vacuum-insulated construction. It looks like an ...

The best vacuum flasks keep drinks hot from morning through to night. We've reviewed the best Thermos flasks, along with vacuum flasks from Chilly's, Stanley and Hydro Flask, and cheaper own-brand ...

How we’d like to be him. Think of a vacuum flask as a cup within a cup. The space between the two vessels is evacuated of any air, creating a partial vacuum. This reduces the ability for heat to ...

But we can also appreciate good aesthetics. Hydro Flask, in particular, has built a loyal following with vacuum-insulated bottles that sport unmistakably bright powder-coated exteriors and keep ...

Which is why money-conscious Amazon shoppers have been raving over a £22.97 thermos vacuum flask that has helped them to save some pennies by cutting back on the amount of times they use the kettle.