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2025-07-17 07:13:58 -

Eco-Friendly Choice: Stainless Steel Vacuum Flask

One of the most important advantages of stainless steel vacuum flasks is their ability to retain temperature for hours. These flasks use a double-wall construction with a vacuum layer between the walls, which greatly reduces heat transfer through conduction and convection. As a result, hot beverages such as coffee or tea can stay warm for up to 12 hours or more, while cold drinks remain...

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