Product test

Not a bottle, this FLSK

Patrick Bardelli
21.6.2019
Translation: machine translated

PET was yesterday. Drinking water 2.0 is sustainable. I have a FLSK on my desk. Thank goodness.

The last few days have been tough. And humid. The thermometer at my workplace regularly showed 28 degrees Celsius and above. It felt like 40 degrees. I probably should have written something about water sports during this time. SUP or something. But honestly, I'm sitting here in the office, my T-shirt seems to have melted into the backrest and my brain is a grey mass of sludge. Thinking? Not a chance. It's too hot.

The reach for the bottle

Until recently, there was a PET bottle on my desk. Those days are over. Since the big bottle test by my colleague Knecht last summer, I only quench my unquenchable thirst with the test winner, sustainable and plastic-free.

You can find out how the test winner became the test winner here:

  • Product test

    Are thermos flasks all they’re cracked up to be?

    by Raphael Knecht

Why is this bottle not a bottle? Well, because ...

. the unique Vacuum Isolated Copper coating technology keeps drinks in the FLSK thermos bottle cold for up to 24 hours and hot for up to 18 hours. There is a vacuum layer between the stainless steel, which prevents heat or cold from escaping because, unlike air, it is non-conductive.

In addition, an additional copper coating on the stainless steel ensures that the temperature is maintained. The vacuum flask combines high technical requirements with perfect design, making it a very functional and visually appealing drinking bottle. The FLSK thermos flask is lightweight, easy to handle and available in three different sizes (0.5 ℓ/0.75 ℓ/1 ℓ). The lid is completely leak-proof - any leaks are a thing of the past.

In addition, the vacuum flask is carbonic acid-resistant, neutral in flavour, completely BPA-free and ecologically sustainable. The high-quality workmanship made from rust-free and tasteless type 304 stainless steel ensures that your new FLSK will be a reliable companion that you won't want to do without for many years to come.

As an attentive reader, you will not have missed the flowery marketing jargon in the last three paragraphs. Sorry, it's copypaste from the manufacturer. Too hot to write it myself. Nevertheless, the FLSK is good. It is produced in an environmentally friendly way and is 100 per cent recyclable.

Hot prospects

At least it's cooling down a bit now and there's a short break in the heat. But if I look at the weather forecast for next week, the FLSK will have to put in extra shifts.

1832 drinking bottles

Looking for my author profile? Just follow here for the smell of my sweat.

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From radio journalist to product tester and storyteller, jogger to gravel bike novice and fitness enthusiast with barbells and dumbbells. I'm excited to see where the journey'll take me next.


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