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Vacuum drinkware, also known as insulated drinkware, is designed to keep liquids hot or cold for an extended period of time. The design of vacuum drinkware involves a double-wall construction with a vacuum-sealed space between the walls to prevent heat transfer. This insulation helps maintain the temperature of the beverage inside the drinkware, making it suitable for both hot and cold drinks.
Vacuum drinkware is commonly made of stainless steel, which is durable, easy to clean, and does not retain flavors or odors. The exterior of vacuum drinkware is usually covered with a protective coating to prevent condensation and ensure a comfortable grip.
