SUBHEAD: How to build a pot-in-pot "Desert Fridge to cool food by 18ºF for extending storage.
By Bibi Farber on 5 March 2009 in Next World TV -
(http://www.nextworldtv.com/videos/innovations/desert-fridge.html)
Image above: Still frame pouring sand into pot-in-pot "Desert Fridge Project. From video below.
The Pot in Pot method of keeping food cool in hot climates is even becoming popular among people in the West who wish to reduce their dependency on a big energy sucking refrigerator.
The method is very simple: There are two clay pots, one inside the other. In between fill with is sand. Saturate sand with water and Put food to be cooled in inner pot. Cover pots. As the water evaporates it removes heat from the inner system, thereby leaving it cool.
As needed add more water a few times a day to keep the sand wet.
One major benefit is that the pot-in-pot enables Gambian farmers to retain food for future sale, instead of dumping all the produce that doesn't sell during a given day.
If the farmers have a storage system, it changes everything. No electricity needed!
Video above: How to build a pot-in-pot "Desert Fridge. From (https://youtu.be/92fpnUfRt1A).
.
By Bibi Farber on 5 March 2009 in Next World TV -
(http://www.nextworldtv.com/videos/innovations/desert-fridge.html)
Image above: Still frame pouring sand into pot-in-pot "Desert Fridge Project. From video below.
The Pot in Pot method of keeping food cool in hot climates is even becoming popular among people in the West who wish to reduce their dependency on a big energy sucking refrigerator.
The method is very simple: There are two clay pots, one inside the other. In between fill with is sand. Saturate sand with water and Put food to be cooled in inner pot. Cover pots. As the water evaporates it removes heat from the inner system, thereby leaving it cool.
As needed add more water a few times a day to keep the sand wet.
One major benefit is that the pot-in-pot enables Gambian farmers to retain food for future sale, instead of dumping all the produce that doesn't sell during a given day.
If the farmers have a storage system, it changes everything. No electricity needed!
Video above: How to build a pot-in-pot "Desert Fridge. From (https://youtu.be/92fpnUfRt1A).
.
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