Pot-in-pot refrigeration without electricity

As IFTSP has maintained, going forward to a sustainable future requires applicaition of what we know, and sustainability promoting inventions are often simple and quickly taken up. Take the ROLEX-award winning pot-in-pot invention by Mohammed Bah Abba. Separated by a layer of constantly wet sand, the evaporating effect cools the inner pot. Food spoilage is Read more about Pot-in-pot refrigeration without electricity[…]