# \#fizz-keeper **URL:** https://scanalyst.fourmilab.ch/tag/fizz-keeper/3564.md [Latest](https://scanalyst.fourmilab.ch/latest.md) · [Categories](https://scanalyst.fourmilab.ch/categories.md) · [Tags](https://scanalyst.fourmilab.ch/tags.md) --- ## [Does the “Fizz-Keeper” Work?](https://scanalyst.fourmilab.ch/t/does-the-fizz-keeper-work/2568)
**Author:** [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\ **Replies:** 11\ **Last updated:** [8 January 2023 05:08 UTC](https://scanalyst.fourmilab.ch/t/does-the-fizz-keeper-work/2568 "2023-01-08T05:08:19Z")
The Fizz-Keeper is a gadget (U.S. Patent 4,723,670 \[PDF\], 1988-02-09) that screws on to the top of a carbonated beverage bottle and contains a pump that allows re-pressurising the bottle after it has been o…