Vacuum sealed tumblers like our Glacial Diamonds Tumbler and bubba®Envy Vacuum Tumbler use special technology to harness the natural insulating properties of air. These tumblers are super hot in the promotional products industry and we thought we’d share a little more about the technology. These products are on the higher-end of tumbler-style drinkware and often require a little more information in the selling process.
The key to keeping drinks cold (or hot) longer than traditional double wall drinkware is the vacuum seal insulation. In the case of the Glacial Diamonds Tumbler for example, the stainless steal tumbler is constructed with a hole left in the bottom of the outer wall. The air is then sucked out of the space between the walls and as it is sucked out a glass bead is then wedged into the hole and heated to create an airtight seal.
Because there are no air molecules between the tumbler walls to transfer heat or cold, the beverage maintains its temperature for hours longer.
Click here to view BIC Graphic’s entire line of vacuum sealed tumblers.