A vacuum bottle, also called a vacuum flask or a thermos bottle, is one of the most important appliances that technology has given us.
These bottles are a popular choice today as they are capable of maintaining the temperature of hot beverages hot and chilled beverages cold. What makes this possible?
Source URL- https://dailygram.com/index.php/blog/878949/the-multipurpose-use-of-vacuum-bottle/
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