What is a Vacuum Bottle and How Does It Work?
A vacuum bottle, also known as a thermos, is a container designed to keep the temperature of its contents constant by preventing heat transfer between the contents and the outside environment. The vacuum bottle is made up of two layers of glass or plastic with a vacuum space between them. The vacuum layer prevents heat transfer by conduction and convection, while the inner layer is usually coated with reflective material to prevent radiation. This makes vacuum bottles an ideal solution for keeping beverages hot or cold for extended periods of time.