DIY Mini Fridge Keep’n It Cool in the 3rd World
by
Doug Gunzelmann on
October 29th, 2008
The Pot-In-Pot Cooler is an extremely simple device made from two pots, sand, and water. Used in rural areas and developing countries, where electricity is scarce and precious, the Pot-In-Pot Cooler uses the evaporative power of water to draw heat energy away from the contents.


