The thermos bottle is made of double-glazed glass. Both layers of glass are coated with silver, which reflects the heat rays back, which cuts off the path of heat radiation. Bottle of three kinds of heat transfer After the block is blocked, the hot water in the thermos can never cool down.
Read MoreOne of the most commonly used methods is to blanch with hot water. You can pour the boiling hot water into a thermos bottle, then close the lid, and replace the hot water after one day, so that the peculiar smell can be removed in two days.
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