There are some principles for the teapot to keep warm, mainly through the emission of heat. Controlled heat has conduction, convection and radiation effects in the process of emission. Using these three factors, we can understand the principle of keeping warm with tea spectrum. You will find that there is a lid on the general teapot, and many lids are made of cork, because this kind of wood is not easy to conduct heat, and it can also prevent the occurrence of heat conduction effect. Moreover, the middle of the bra is vacuum, which can also prevent air convection. The general bottle liner is silvery white, so the heat can't be reflected, and it can be kept in the bottle liner all the time.
The main parts of the kettle are composed of an outer wall and an inner wall, and the middle is in a vacuum state. Convection and heat conduction can't be carried out in vacuum, and plating a layer of metal on it can also prevent color heat, so when boiling water is poured into the checkpoint, it can be kept warm for a long time, especially in winter, and it can also be used to warm drinks and keep drinks cold in summer.
It will be found that the insulation effect of the teapot will decrease after a period of use, mainly because there is scale in it, which is related to the water quality. When the teapot is heated with hot water for a long time, there will be scale in the flat plate and it is difficult to clean. By removing the scale through some methods, the heat preservation effect will become better. The most common method is to soak in vinegar, which is easy to remove scale. If you want to remove the odor from the kettle, you can also choose to wrap some tea leaves in gauze and put them in the kettle to remove other odors. Moreover, the pot of tea tastes very strong, just like new, so the thermos has many functions and the structure is not complicated.