Gasogene

A gasogene is a device used to carbonate water and create carbonated beverages. It consists of two chambers – one for water and one for carbon dioxide gas. The water chamber is typically filled with plain water, while the gas chamber contains carbon dioxide gas under pressure.
When the two chambers are connected, the carbon dioxide gas dissolves into the water, creating carbonation. This process is what gives carbonated beverages their fizzy texture and bubbly taste. Gasogenes were popular in the late 19th and early 20th centuries before the advent of modern soda machines.
Gasogenes are still used today by some enthusiasts who enjoy making their own carbonated beverages at home. They can be a fun and practical way to create your own custom soda flavors without the need for artificial additives or preservatives. With a gasogene, you have full control over the amount of carbonation in your drinks, allowing you to customize the fizziness to your liking.