Isothermal bottles

Invention

In 1892, Scottish inventor James Dewar, a renowned physicist and chemist, created the "Dewar container" or "Thermos". Dewar was looking for a way to keep substances at extremely low temperatures for his scientific experiments. He invented a container consisting of two glass flasks, one inside the other, with an air gap in between. This air gap acts as an excellent thermal insulator.

Marketing

Glassmakers Reinhold Burger and Albert Aschenbrenner saw the potential of this invention. In 1904, they decided to improve the design and obtained a patent for the isothermal bottle. They also founded Thermos GmbH and launched a huge production of isothermal bottles.

The bottle quickly became known as the "thermos", like the brand name. It became an essential accessory for soldiers, explorers, workers and picnic enthusiasts. During the First World War, these bottles were used extensively to provide soldiers with hot drinks.

Today

They have become an everyday consumer item. They have become more resistant. They are available in a variety of sizes, shapes and designs, adapted to different needs, whether for keeping a coffee hot during a morning's work or keeping a drink cold during a summer hike.