Termoszettek

Termoszettek, also known as thermos flasks or vacuum flasks, are insulated containers designed to keep liquids hot or cold for extended periods. They consist of a double-walled vacuum-sealed vessel, with the space between the walls evacuated or filled with a poor conductor of heat, such as a desiccant or a vacuum. This insulation minimizes heat transfer, maintaining the temperature of the contents.

The outer wall is typically made of stainless steel or plastic, providing durability and resistance to external temperature changes. The inner wall, usually made of glass or plastic, holds the liquid. The lid is usually fitted with a screw-on cap or a valve to allow for easy filling and pouring.

Termoszettek are commonly used for beverages, such as coffee, tea, and hot chocolate, as well as for food storage, like soups and stews. They are popular among outdoor enthusiasts, travelers, and professionals who need to maintain the temperature of liquids over long periods.

The concept of thermos flasks dates back to the 19th century, with the first patent being granted in 1881. Since then, they have undergone various improvements in design and materials, leading to the modern thermos flasks we use today. Despite their simplicity, thermos flasks continue to be a practical and efficient solution for temperature control.