India | refrigerator without electricity

Now it is not necessary to have electricity to save meat. An Indian craftsman has created a fridge made ​​of clay that does not need electricity to keep food fresh. The Mitticool, as it was called, works by evaporation.

The water stored in the upper part of the refrigerator runs down the side of the machine and evaporates through the hot part of the concentrated clay. What happens is the warm air is released, keeping the part of the refrigerator that keeps food, always fresh. The machine also has a tap to reuse this water out and already ready to drink. Interesting, right?