The zeer pot is a simple fridge made of local materials. It uses a porous outer earthenware pot, lined with wet sand, contains an inner pot which can be glazed to prevent penetration by the liquid within which the food is placed the evaporation of the outer liquid draws heat from the. We build a theoretical model to analyze the cooling process and do contrast experiments to find a best combination of conditions to optimize the cooling effect. Through evaporation, heat is taken from the smaller pot outside. Instant pot pressure cooker recipe book north america. How to build a pot in pot clay refrigerator or zeer. A practical zeer pot evaporative cooler nonelectrical refrigerator. In this paper, steadystate performance of the refrigerator is analysed using reynolds flow model of convective heatmass transfer. Therefore, the heat in the inner pot is most efficiently conducted away from the inner pot. Its not the same as having a fridge, but given it doesnt require electricity, this could be an excellent backup for people looking to.
In just 45 minutes you can prepare 6 healthy slow cooker freezer meals to keep on hand for those nights when you need them most. I dont understand what the sand does in this situation. Use one bottle cap and sealer to glue the cap to the inside bottom of the 8 flower pot. The refrigerator works on the evaporative cooling principle. One such experiment was conducted using a tin pot placed inside a larger clay pot by kamaldeen. This time the inside of the pot in pot was definitely cooler than the air outside. Place the jar in the refrigerator to solidify the crust while you move on to the next steps. Thermal analysis of clay pot in pot refrigerator international. The only parts which are referenced refer to the pot in pot refrigerator, specifically emily cumminss ecofridge variant, and multiple sources refer to this as a solarpowered refrigerator. Cryogenic noise is a constant problem in all experiments using this kind of refrigerator. Fridge for the poor 5 market and location context the administrative headquarters of mobah rural horizons, producer of the pot in pot products which is widely termed as the fridge for the poor or desert refrigerators is based in kano, a.
Instant pots 4th edition of the recipe book included with your multiuse programmable pressure cooker includes a recipes, cooking time tables and tips. Jun 28, 2012 the principle is the one presented above. As humidity is pulled from the sand and the inner pot, the temperature inside the inner pot cools down. The remainder of the document discusses other clay based technologies that may be of interest. Gsc3500d35bb gme04ggkbbb tfx25qrcgww htr15abmfrww jkp70sp1ss overview.
If you dont already know, a zeer pot is a type of evaporative refrigerator. Spinach for example that would normally spoil in a day can now last 12 days. The simple claypot refrigerator is ideally suited for preserving vegetarian foods in hot and dry climates. A potinpot refrigerator, clay pot cooler1 or zeer arabic. User manual of westinghouse whsc03ss 3 pot slow cooker. The potinpot design used in sudan can be made in many different sizes. On the other hand, the instant pot has a 22page user manual, which doesnt include any.
The zeer pot is a refrigeration device invented in africa which operates by the. Fridge for the poor 5 market and location context the administrative headquarters of mobah rural horizons, producer of the potinpot products which is widely termed as the fridge for the poor or desert refrigerators is based in kano, a. A potinpot refrigerator is a simple to fabricate and a cost. Simulation of pot in pot refrigerator umesh c1, dr. May 08, 2016 one easy solution would be to build a pot in pot refrigerator. Heat transfer and evaporative cooling in the function of potinpot.
Time after setting up the pot in pot refrigerator temperature inside the pot degrees celsius. A potinpot refrigerator, clay pot cooler or zeer arabic. Below youll find a couple of download links for this printable. In a mixing bowl with a hand blender, or with a fork stirring vigorously, breakup and mix the ricotta. The wikipedia article pot in pot refrigerator says that sand in the outer pot somehow affects the cooling efficiency of refrigerator. Create the worlds cheapest refrigerator for less than 5 bucks.
Potinpot refrigerator is a refrigeration device which uses evaporative cooling and works without consuming electricity. Busting myths about the zeer pot zeer pot example image credit. Zeer potinpot refrigerator higher humidity results this is a design dating back to as early as 2500 b. Since the slow cooker chicken curry cooks for the first time in your slow cooker, it wont taste like leftovers. The evaporation of the outer liquid draws heat from the inner pot.
They consist of two terra cotta pots, one nested inside the other, with the gap between them filled with wet sand. Busting myths about the zeer pot rebuilding civilization. The potinpot refrigerator, also known as a zeer in arabic, is a food cooling device. Heat and mass transfer analysis of a claypot refrigerator. Instant pot electric pressure cooker recipes author.
Evaporative cooling the ceramic refrigerator download 1. In this solution we estimate the cooling effect by the temperature drop as well as the cooling time. Instant pot small kitchen appliances for sale ebay. This soup tastes great with a piece of crusty bread on the side. The clay pot cooler an appropriate cooling technology pdf. Complete elimination of 1k pot vibrations in dilution. It can extend the useful life of fruits and vegetables. Use the first link to download a pdf copy of the cheat sheet. Zeer pot, evaporative cooling, refrigeration, sand, charcoal, gunny cloth. Westinghouse whsc03ss 3 pot slow cooker user manual user guide pdf download or read online. Shelflife with and without zeer pot refrigerator 2 zeer pot construction a zeer is constructed by placing a smaller clay pot into a larger clay pot. In this article, we experimentally investigate the influence of the main physical parameters in model potinpot coolers.
Time after setting up the potinpot refrigerator temperature inside the pot degrees celsius. For the assumed respiratory cooling load, the preservation temperature is predicted under a. Homemade pot in pot refrigerator off grid fridge cools air up to 40f evaporative. Combine all ingredients in a gallonsized plastic freezer bag, remove as much air as possible, and seal. Lux 80 instant pot rice cookers user manual user guide pdf download or read online. Using simple pots, water and sand together, this type of refrigerator is currently being used by tonnes of farmers in warmer climates who have the need to keep their food for a long time while keeping the insect away. Experimental comparative analysis of clay pot refrigeration. For example, compare filling the outer pot with water vs. The potinpot refrigerator works off the evaporation of the water, cooling the system, and the conduction of the heat away from the inner pot to the water and sediment.
Zeer potinpot refrigerator higher humidity results flower. The user manual for the crockpot is eight pdf pages long and half of those are hints, tips, and recipes. The pot in pot cooler potting cypripediums for a hot climate for those of us who simply wont be stopped from having plants we shouldnt be growing given the local climate, the pot in pot cooler method is a perfect solution. Enjoy a wholesome homemade supper even on your busiest weekdays by stocking your freezer with crock pot dinners. The simple clay pot refrigerator is ideally suited for preserving vegetarian foods in hot and dry climates. Home resources crop processing crop storage and preservation evaporative cooling the ceramic refrigerator. Several modifications based on the zeer pot design concept have been made and experiments carried out. They consist of two terra cotta pots, one nested inside the other, with the gap between them.
It is a device that keeps being rediscovered even though various versions of the device have been used for thousands of years. The potinpot preservationcooling system was invented mainly to help rural farmers preserve their farm products. This time the inside of the potinpot was definitely cooler than the air outside. Heat transfer and evaporative cooling in the function of. Pdf potinpot cooling device is basically a food cooler that utilizes the effect of evaporative cooling for its intrinsic. View and download crockpot smartpot owners manual online.
For use with 47 quart programmable smartpot slow cookers. Yes, pot in pot is solar powered, just like a clothesline is. One simple solution is to build your own potinpot fridge, using basic pots, sand and water. Cook on low setting for 8 hours or until veggies are soft.
Oct 02, 2011 zeer pot in pot refrigerator higher humidity results this is a design dating back to as early as 2500 b. Fridge for the poor 2 executive summary mobah rural horizons, producer of the potinpot products which is widely termed as the fridge for the poor is based in kano, nigeria. When ready to cook, thaw in the refrigerator overnight and add to slow cooker with chicken broth. The pot in pot refrigerator works off the evaporation of the water, cooling the system, and the conduction of the heat away from the inner pot to the water and sediment. The cap should cover the hole in the bottom, and have enough gluesealant to create a full ring around the cap.
Apr 23, 2012 the pot in pot cooler potting cypripediums for a hot climate for those of us who simply wont be stopped from having plants we shouldnt be growing given the local climate, the pot in pot cooler method is a perfect solution. When ready to cook, thaw overnight in your refrigerator and cook in your slow cooker for 8 hours on low. When its time for an emergency throw together dinner meal, remove the food from the freezer bag and plop your perfectly pot shaped meal into your pressure cooker pot and cook, adding 5 10 minutes of extra cooking time depending on the size of your meat for example, the pepperoncini beef and chicken i added 5 minutes because they were. A potinpot cooler is an affordable electricityfree refrigerator which uses the latent heat of vaporization of water to maintain a low temperature. It needs no electricity it is made by putting a clay pot inside a larger clay pot with wet sand in between the pots and a wet cloth on top. Sand is placed between the interior of the large pot and the exterior surface of the small pot. The technology was perfected in nigeria by mohammed bah abba, between 19951997. From nigeria the potinpot a refrigerator that runs without electricity designed in 1995 by mohammed bah abba, a professor in nigeria, the potinpot cooling system helps farmers by reducing food spoilage and waste, increasing their income and limiting the health hazards of. How to build a pot in pot clay refrigerator or zeer afropedea. This would seal the water inside the pot and prevent it from evaporating. As water evaporates from the sand, it leaches into the outer pot more than the inner one, thus creating a wicking action. A pot in pot refrigerator will cool food down by evaporative cooling. The steps for making a pot in pot refrigerator are outlined below in case the reader is unable to open pdf files. The wikipedia article potinpot refrigerator says that sand in the outer pot somehow affects the cooling efficiency of refrigerator.
The most useful instant pot cheat sheet on the web just. Pot in pot clay refrigerator or zeer is a low cost traditional technology that can provide cooling refrigeration without electricity. Homemade potinpot refrigerator off grid fridge cools air up to 40f evaporative. Zeer potinpot refrigerator higher humidity results. The night before cooking, move to refrigerator to thaw. Potinpot refrigerator simple english wikipedia, the. One simple solution is to build your own pot in pot fridge, using basic pots, sand and water. Pdf heat and mass transfer analysis of a potinpot refrigerator. Aug 12, 2018 recently i started using an instant pot, and i was sure there was a way to put the two methods together but i wasnt sure how to go about it. Use the second link to download an image copy of the cheat sheet that.
This is the ultimate way to simplify your lifeand ive even included my free printable shopping list. Making a pot in a pot refrigerator the sustainability box. When we replicated the experiment we used unglazed clay flower pots. Oct 27, 2019 tips for preparing 6 healthy slow cooker freezer meals in less than 1 hour. More information about the potinpot cooling system. A potinpot cooler is an affordable electricityfree refrigerator which uses the latent heat of vaporization of water to maintain a low temperature inside an inner compartment. The only parts which are referenced refer to the potinpot refrigerator, specifically emily cumminss ecofridge variant, and multiple sources refer to this as a solarpowered refrigerator. From nigeria the pot in pot a refrigerator that runs without electricity designed in 1995 by mohammed bah abba, a professor in nigeria, the pot in pot cooling system helps farmers by reducing food spoilage and waste, increasing their income and limiting the health hazards of decaying foods. A potinpot refrigerator will cool food down by evaporative cooling. A pot in pot cooler is a simple invention that allows for longer storage of produce without refrigeration.
Pebbles are the best heat conductor of the three sediments tested. Within the document, pages 15 to 19 outline in detail how to make a pot in pot refrigerator. Potinpot clay refrigerator or zeer is a low cost traditional technology that can provide cooling refrigeration without electricity. The food is put into the smaller pot, and covered with a wet cloth. In a community or situation without electricity, storage of food longterm can be tricky. Nov 02, 2019 how to make a pot in a pot refrigerator. Instant pot s 4th edition of the recipe book included with your multiuse programmable pressure cooker includes a recipes, cooking time tables and tips.
As the water evaporates it cools the inside, letting food stored in the inner pot to be kept fresh for some time. A zeer pot is an evaporative cooler used in rural africa and the middle east to keep vegetables fresh. Pdf experimental study of alternatives to sand in zeer pot. The pot in pot cooler potting cypripediums for a hot. Potinpot refrigerator simple english wikipedia, the free. Basically, all you do is toss some raw ingredients into a large ziptop freezer bag, label it, and stick it in your freezer. It uses a porous outer clay pot lined with wet sand containing an inner pot which can be glazed to prevent penetration by the liquid within which the food is placed. Evaporative cooling the ceramic refrigerator kamal. Pdf development and performance evaluation of potinpot. Azeer pot, also known as a pot inpot refrigerator, is a simple system composed of two terracota pots, some sand and some water that can maintain a cool temperature to preserver fruits and veggies. I am against using electricity for either heating or cooling, so i am always. Jan 03, 2018 when its time for an emergency throw together dinner meal, remove the food from the freezer bag and plop your perfectly pot shaped meal into your pressure cooker pot and cook, adding 5 10 minutes of extra cooking time depending on the size of your meat for example, the pepperoncini beef and chicken i added 5 minutes because they were.
The most useful instant pot cheat sheet on the web just got. Recently i started using an instant pot, and i was sure there was a way to put the two methods together but i wasnt sure how to go about it. Those who could benefit from improved vegetable storage and longer shelf life may include vegetable producers, wholesalers, retailers, and household consumers, particularly offgrid, rural communities dependent on subsistence farming. The flower pot cooler uses an inner terra cotta pot surrounded by sand and an outer terra cotta pot. Use the second link to download an image copy of the cheat sheet that is perfect for viewing on your smartphone or tablet. Complete elimination of 1k pot vibrations in dilution refrigerators. Aug 19, 2009 a pot in pot cooler is a simple invention that allows for longer storage of produce without refrigeration. The potinpot refrigerator more information about the potinpot cooling system. Zeer pot in pot refrigerator higher humidity results this is a design dating back to as early as 2500 b. In morning, add to crockpot and cook on low setting for 46 hours or until chicken is. I am going to call them evaporative refrigerators since they operate by evaporation and are used like a refrigerator. One easy solution would be to build a pot in pot refrigerator. Thus, by trying to optimize this setup by manipulating certain variables covered in conclusion, the cost can be further brought down. I knew learning how to freezer cook for the instant pot would change my meal prep and cooking for the better.
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