The heat is transferred by radiation, convection and conduction. The thermos have vacuum insulator, silver plated, short bottleneck design and so on structure design to stop the heat transfer.
Knowing how to clean the thermos is a useful effective piece of knowledge to know. Here are some methods to clean the customised thermos and an introduction to the cleaning utensils. These are some tips about how to remove the odour, tea stains and water stains from the thermos.
