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Fri Apr 27, 2012, 02:56 PM

Cooking with the sun

Using the suns abundant power could be the solution for people who cannot afford escalating electricity costs. Channelled through simple, curved dishes its rays can cook food and boil water.

http://mg.co.za/multimedia/2012-04-25-cooking-with-the-sun/

Neat - wonder how much they are. Would like one.

30 replies, 2584 views

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Arrow 30 replies Author Time Post
Reply Cooking with the sun (Original post)
tabatha Apr 2012 OP
gateley Apr 2012 #1
Speck Tater Apr 2012 #2
HiPointDem Apr 2012 #3
Liberal_in_LA Apr 2012 #21
HiPointDem Apr 2012 #22
Liberal_in_LA Apr 2012 #25
HiPointDem Apr 2012 #26
Arkansas Granny Apr 2012 #5
IDemo Apr 2012 #15
freshwest Apr 2012 #7
MattBaggins Apr 2012 #12
freshwest Apr 2012 #14
Speck Tater Apr 2012 #17
HiPointDem Apr 2012 #23
IDemo Apr 2012 #18
4th law of robotics Apr 2012 #27
PoliticAverse Apr 2012 #4
kestrel91316 Apr 2012 #6
meow2u3 Apr 2012 #8
Poll_Blind Apr 2012 #10
Poll_Blind Apr 2012 #9
geardaddy Apr 2012 #11
magical thyme Apr 2012 #28
Sheepshank Apr 2012 #13
IDemo Apr 2012 #16
cherokeeprogressive Apr 2012 #19
IDemo Apr 2012 #20
AsahinaKimi Apr 2012 #24
Shankapotomus Apr 2012 #29
tabatha Apr 2012 #30

Response to tabatha (Original post)

Fri Apr 27, 2012, 02:59 PM

1. Wouldn't hurt to have one. nt

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Response to tabatha (Original post)

Fri Apr 27, 2012, 03:05 PM

2. This is new? I had a folding version in the 1950's

 

We used it for starting camp fires in the Boy Scouts.

Google "solar cooker" to see designs going back in the the last century and before, including plans for one you can make with cardboard and aluminum foil.

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Response to Speck Tater (Reply #2)

Fri Apr 27, 2012, 03:08 PM

3. and has been touted as a solution for the poor of the third world ever since. but somehow...

 

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Response to HiPointDem (Reply #3)

Fri Apr 27, 2012, 09:18 PM

21. saves women & girls from having to walk for firewood (and be subject to rape)

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Response to Liberal_in_LA (Reply #21)

Fri Apr 27, 2012, 10:20 PM

22. Yeah, the same rationale as in the 60s. Except for the "rape" part, that's new. But

 

contrary to what seems to be western popular opinion, African/third-world women aren't universally in danger of rape everytime they wander from their hovel in the bush.

Nor do most of them even live in the bush. 72% of the population of sub-saharan africa lives in urban slums.

http://www.cfr.org/africa/urbanization-sub-saharan-africa/p14327

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Response to HiPointDem (Reply #22)

Sat Apr 28, 2012, 02:23 PM

25. I hear ya. thanks for the additional info

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Response to Liberal_in_LA (Reply #25)

Sat Apr 28, 2012, 02:38 PM

26. thanks, but i misread the stat. 72% of *urban* africans live in slums. percent of urbanized

 

africans is more like 40-50% (e.g. 57% in south africa, 47% in liberia, nigeria, egypt, 12% in uganda, etc.).

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Response to Speck Tater (Reply #2)

Fri Apr 27, 2012, 03:30 PM

5. I'm pretty sure I saw plans to make these out of cardboard and aluminum foil in an issue

of "The Mother Earth News" back in the 80's. They also told how to cook in straw boxes and compost heaps, FWIW.

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Response to Arkansas Granny (Reply #5)

Fri Apr 27, 2012, 05:57 PM

15. I made one like this and it worked great->

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Response to Speck Tater (Reply #2)

Fri Apr 27, 2012, 05:12 PM

7. There are a lot of them demonstrated on youtube, you can make them at home. That and the other kind.

That takes a bit longer but will heat water for washing and bathing, distill water, cook roasts, vegetables, eggs, beans and dehydrate food. There's a world of information out there.

Plus passive methods for heating homes and turbine generators. The solutions are as simple as cardboard and foil to using those controlled by computer chips. It's a shame people have been in hock to the power companies all this time.

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Response to freshwest (Reply #7)

Fri Apr 27, 2012, 05:36 PM

12. If solar cookers worked for more than breediing salmonella

people would be using them.

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Response to MattBaggins (Reply #12)

Fri Apr 27, 2012, 05:54 PM

14. Salmonella lives past the steaming, boiling, grilling and burning point some of these make?

Guess they're trying to kill off the people in the third world with these contrivances. That's not very nice.

No one is suggesting you give up being in hock to utility companies, though. Most of us are. No one's being attacked by these, so be careful with your cooking.

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Response to MattBaggins (Reply #12)

Fri Apr 27, 2012, 06:18 PM

17. Better do some fact checking.

 

As long at it keeps the pot of stew above 68 C (154 F) there's no problem. A decent solar cooker has no trouble getting that hot.

The reason people aren't using them has to do with laziness. You have to go outside to use it, and when the sun is out people stay in their air conditioned spaces. And on a cloudy day, they don't work. That's a pain, and people can't be bothered by anything inconvenient.

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Response to Speck Tater (Reply #17)

Fri Apr 27, 2012, 10:23 PM

23. right, it's a great invention but poor people are lazy. that's the ticket.

 

edited to remove "african". i thought previous posters had specified african, but that was my misreading.

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Response to MattBaggins (Reply #12)

Fri Apr 27, 2012, 07:59 PM

18. Water pasteurization, for instance?

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Response to Speck Tater (Reply #2)

Sat Apr 28, 2012, 03:00 PM

27. Yeah, this idea seems to get trotted out every now and then

 

as if it were A) entirely new and B) totally going to solve all the third worlds problems.

It's a cool idea and has some utility but it has been way overhyped.

I'm more interested in how these humidity-harvesting windmill are going to work out: http://niceartlife.com/?p=2985

Clean water is a bigger concern in the third world than heating sources.

/besides, everyone knows rocket stoves solved all the third-worlds cooking problems. http://en.wikipedia.org/wiki/Rocket_stove

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Response to tabatha (Original post)

Fri Apr 27, 2012, 03:22 PM

4. Youtube has lots of videos of solar cookers in operation, also there are lots of plans

for solar cooker construction on the Internet.

They're also sold pre-assembled by several companies in the US.

Pizza box solar oven:


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Response to tabatha (Original post)

Fri Apr 27, 2012, 04:01 PM

6. Everything you ever wanted to know about solar ovens, brought to you by teh Google:

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Response to tabatha (Original post)

Fri Apr 27, 2012, 05:26 PM

8. I wonder if we can recycle satellite TV dishes to make solar cookers

They're both shaped the same way. That would be an excellent idea to put old DirecTV dishes to good use.

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Response to meow2u3 (Reply #8)

Fri Apr 27, 2012, 05:32 PM

10. Yeah, apparently that works too! Check out my response #9. nt

PB

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Response to tabatha (Original post)

Fri Apr 27, 2012, 05:27 PM

9. There are a number of DIY ones you can find demos of on YouTube. Like this one:



(and it's got a sweet song in the background, to boot!)

Search on "Solar Cooker"



PB

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Response to tabatha (Original post)

Fri Apr 27, 2012, 05:34 PM

11. This is the one we use

It's great. You can even cook in the middle of sub-zero winter here in Minnesota.

http://www.solarovens.org/

This is our friend doing a demonstration in January.

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Response to geardaddy (Reply #11)

Sat Apr 28, 2012, 03:29 PM

28. hey, I use that model too!!!!!

I've been solar cooking for 2 years now. I got that one last year and I LOVE it.

For those who are mocking it, it cut my propane bill dramatically. Paid for itself probably in one summer, with me only having a day or two each week to cook, and for only half the summer.

I can cook outside pretty much from March to October on sunny days. I'm pretty far north, so the sun gets too low for the rest of the year to generate enough heat.

And I LOVE the way food comes out. Meat cooks until it falls off the bone, but tender and very flavorful.

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Response to tabatha (Original post)

Fri Apr 27, 2012, 05:43 PM

13. wasn't this covered in "Men Who Stare at Goats"?

...and wasnt it deemed a failure?

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Response to tabatha (Original post)

Fri Apr 27, 2012, 06:00 PM

16. I made some great chicken and red potatoes last weekend

and will likely cook up some split pea or black bean soup tomorrow. If you live in an area with even moderate sunshine, you owe it to yourself to try solar cooking.

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Response to tabatha (Original post)

Fri Apr 27, 2012, 08:17 PM

19. Solar Cookers International / Solar Cookers World Network - Great Stuff!

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Response to tabatha (Original post)

Fri Apr 27, 2012, 09:16 PM

20. Since health hazards associated with cooking are a source of concern upthread,

When cooking can be deadly

Dar es Salaam, Tanzania (CNN) -- An estimated 3 billion people -- nearly half the world's population -- still use an open fire as their primary source of energy for cooking and heating.

But there's a problem: the smoke.

"You have respiratory issues, lung disease, you've got pneumonia, and you've got longer-term issues like cancer and heart disease as well that can result from exposure to indoor air pollution," said Radha Muthiah, executive director of the Global Alliance for Clean Cookstoves.

The World Health Organization says this type of pollution causes nearly 2 million premature deaths each year. That's more than tuberculosis and three times as many as malaria.

more -> http://edition.cnn.com/2012/02/07/world/africa/tanzania-stoves/index.html


and,

Solar cooking is the simplest, safest, most convenient way to cook food without consuming fuels or heating up the kitchen. Many people choose to solar cook for these reasons. But for hundreds of millions of people around the world who cook over fires fueled by wood or dung, and who walk for miles to collect wood or spend much of their meager incomes on fuel, solar cooking is more than a women carrying wood choice it is a blessing. For millions of people who lack access to safe drinking water and become sick or die each year from preventable waterborne illnesses, solar water pasteurization is a life-saving skill. There are numerous reasons to cook the natural way with the sun.

http://www.solarcookers.org/basics/why.html

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Response to tabatha (Original post)

Fri Apr 27, 2012, 10:40 PM

24. Reminds me of when we would make sun tea..

putting a glass jar filled with water and teabags in the window. Makes great tea.

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Response to tabatha (Original post)

Sat Apr 28, 2012, 04:28 PM

29. If you can cook with the sun

why can't you cook with a solar charged battery?

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Response to Shankapotomus (Reply #29)

Sat Apr 28, 2012, 05:01 PM

30. How much is a solar charged battery?

The storage of electricity is the problem.

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