Vacuum Flasks
Vacuum flasks, also known as thermos flasks or insulated bottles, are innovative containers designed to keep liquids hot or cold for extended periods of time. They consist of a double-wall construction with a vacuum-sealed space in between, creating a highly efficient thermal barrier. The vacuum layer prevents heat transfer by conduction or convection, while the double-wall structure adds an extra layer of insulation. The inner wall is typically made of stainless steel, which is durable and resistant to corrosion. Vacuum flasks are known for their excellent heat retention capabilities, allowing hot beverages like coffee or tea to remain piping hot for several hours, and cold beverages to stay refreshingly chilled. They are popular among travellers, outdoor enthusiasts, and individuals on the go who value the convenience of enjoying their favourite drinks at the desired temperature, no matter where they are. Vacuum flasks come in various sizes, styles, and features, such as leak-proof lids, convenient handles, and built-in cups, making them versatile and practical companions for daily use or special adventures.