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Our magic word: VICC® technology.
What makes the FLSK so special? Aside from the cool design, it’s the extraordinary function that lets the FLSK stand out from the masses. On average, normal thermos flasks do not manage more than 6 to 9 hours of insulating capacity. By then, most water bottles have run out of steam – resulting in the unpleasant experience of cold tea or lukewarm lemonade.
The FLSK, in contrast, keeps its content hot for up to 18 hours and cold for up to 24 hours. Ideal if you’re on the go all day long. VICC® technology makes this possible. You can find more about the revolutionary procedure primarily responsible for the tremendous insulating capacity and performance of the FLSK water bottle here.
We invented the innovative VICC® procedure specially for the FLSK. We are particularly proud of this, because it makes our quality product truly unique. VICC® stands for Vacuum Insulated Copper Coating. Two components, one goal: To make the FLSK’s insulating capacity unbeatable.
Vacuum Insulated: A vacuum refers to a space that does not contain any air. The vacuum layer between the two stainless-steel walls of the FLSK insulating bottle prevents the heat and cold from escaping. Since, unlike air, a vacuum does not conduct temperature, quick heating or cooling becomes impossible. The stability of the FLSK is not affected by the vacuum – the robust stainless steel can even handle hard falls or forceful blows.
Copper Coating: Copper coating on the outside of the bottle further supports retention of the temperature. The high-quality stainless-steel material of the other water bottle components ensures the function’s longevity.
The use of VICC® technology is currently the most advanced and effective procedure for temperature insulation in thermos flasks. It was developed by us and meets the highest technical standards. Unfortunately, even VICC® technology cannot maintain the temperature forever. Over time, the heat or cold dissipates – especially via the lid. To counteract this, our bottle lids have a particularly precise fit with an elastic ring. As a result, the FLSK thermos has an insulating capacity that is second to none: Hot for 18 hours and cold for 24 hours.
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