While primarily made up of stainless steel, some parts are plastic – but it is BPA-free (an industrial chemical used in water bottles and similar that many people prefer to avoid). The size you pick should be based on your individual needs, as well as the activities you might be doing while using it.

Flasks Vacuum Insulated Thermos Official Range| Thermos UK

c / Wide mouth for stirring coffee or adding ice cubes / Made from 18/8, food-grade stainless steel / Condensation-free exterior / BPA- and BPS-free / Hand-wash only. The black styling of the Klean Coat matte finish is contrasted against the stainless steel of its inner screw lid. The products or services listed have been selected independently by journalists after hands-on testing or sourcing expert opinions.

My conclusion is that if you really care about keeping your caffeine hot, you should choose your insulated flask wisely. The steel is food-grade 18/8 so didn’t retain any smell or flavour from a tremendously strong cup of tea or coffee. The kit can be used by anyone (no paddling required) and their marine-grade stainless steel water bottle is cleverly designed. And if you’re concerned that the 500ml capacity will be too small, it’s worth noting that Thermos also makes a larger 900ml version. Need to know: Not dishwasher safe, twist-off lid, no cup, available in a range of colours and designs, available in 260ml, 500ml, 750ml and 1.

Flasks | Thermos Flasks | Argos

The higher quality steel means it doesn’t corrode like other metal drinks bottles, and can withstand the elements. The 750ml capacity holds around three cups of hot coffee (or the equivalent of a chilled bottle of white wine). In addition to its extremely rugged construction, the wide mouth makes filling and cleaning the flask easy, while the two different stoppers included with the flask make it very versatile too. C after 12 hours (not that much more than the Stanley, and still piping hot enough for a decent brew). The same vacuum principle applies to keeping drinks cold, so double-walled flasks are also a great way to keep drinks ice-cold on a hot hiking day.

You do need to treat this flask with care, as the stainless steel outer wall is very thin and will dent more easily than others. We also understand your irritation when you find yourself at the endpoint and unable to answer these because we have also gone through such phase once yet our unyielding will, which comes from the rock-solid trust of our users, enables us to lay consistent efforts to provide a solution eventually blesses us with the golden and the most accurate solutions to these questions. However, if I am to judge it in terms of heat retention and keeping liquids and food cold, it didn’t perform at anywhere near the same level as the others featured in this guide.

Flask With Cup - Etsy UK Flask With Cup - Etsy UK

c / Made of food grade 18/8 stainless steel that doesn’t impart or retain flavour / Lid doubles as a mug ensuring you always have a cup handy / Silicon sleeve / Drinking stopper opens and closes with a slight turn / Additional standard stopper for optimum heat retention included / Tapered design for easier handling / Large mouth opening is easy to fill and clean.The only design drawback is the flask’s narrow neck and mouth, which minimises heat loss but makes cleaning a little tricky. The cup is large enough as a serving bowl too and remains cleverly secure until the handle is locked in to prevent leakage when you’re carrying it around.