From Swerve, Inc., an intriguing concept for keeping large bottles of soda fizzy after they’ve been opened: collapsing CSD bottles. As explained by Swerve’s Managing Partner, Robert Croft:
“Conventional thought is that the opening and closing of the package causes the soda to go flat. While this is a contributing factor, the main problem lies in the volume of headspace that is created in the package as the product is consumed. Carbon dioxide quickly migrates to the vacant space, causing the beverage to lose its sparkle.
“Ideally, the package should reduce in size as the product is consumed to minimize vacant space inside the bottle.”
Swerve’s idea involves a telescoping “stem” that you ratchet down with each serving, in order to keep the “headspace” (described above) at a minimum. If I’m interpreting it correctly, the way this would work is: you pour yourself a serving of soda, and then push down on the top of the bottle, collapsing it to a new height—(appropriate for the amount of soda remaining in the bottle)—and then you replace the cap.
(Sort of reminiscent of those bendable straws.)
(via: Shelf Impact)
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