[Kedar Nimbalkar] thought so, and built a soda fountain that you can install right inside a fridge. The system is based around using small pumps marketed as “6V DC air pumps” on Amazon.

Many people also know baking soda as that thing you put in the fridge to prevent nasty odors. But how and why does that actually work? Well, it's not magic; It's science. Baking soda is actually ...