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Solar Oven, TV lens, Pot Roast with Potatoes, Onions and carrots.

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Uploaded by on Aug 25, 2008

solar cooking pot roast. 325 degrees most the time. with this set up, you can achieve 400 degrees easily. be sure to use oven worthy glass bowls. don't put the oven directly in the focus point, like in my hot dog video, or your glass will shatter. keep it in front of or behind the focus point to maintain your temp. the closer your oven is to the focus point (in front of or behind) the hotter your temp. you also should remove the lid while it is still very hot to prevent bowls from shattering, due to glass contracting as they cool. i found that by cooking in front of the focus point, i don't have to move my oven or the lens as much as the sun tracks across the sky.

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Uploader Comments (fencekid)

  • How many times did you have to reposition the fresnel lens to keep the heat focused on the cooker?

  • Little here, little there. Definitely not a "set it and forget it" way of cooking due to the moving sun.

  • so, what is the screen made out of?? the one thats mounted on the big wooden thing, that you can move?

  • it's not a screen. it's a sheet of plastic with tiny circular lines carved into one side of it. it's a big screen tv lens. You can see the television it came out of in my hot dog video, at 1:16. works just like a big magnifying glass that you used to burn ants with. but be very careful around it in the sun like when carrying or moving it. it can destroy flesh instantly, start your cloths on fire, or anything on fire for that matter.

  • Thank you for your clear videos.

    One (honest) question:

    Normally the food is being heated up from the bottom of the pan.

    You heat it up the other way around, is there a difference in taste?

    As the focal point of the lens is extremely hot, I fear the food gets burnt easily or loses its taste.

    Thank you in advance for your time.

  • The roast was delicious. The texture was just like a roast cooked in your oven in a roasting pan at 325 degrees 3 hrs. I keep watch as it's cooking and rotate as necessary to avoid over surface scorching, As the sun tracks the sky, so does your focal point, so keep watch. Place your oven in front of the focal point so the beam is wide enough to cover your oven. The closer to the focal point, the hotter the temp. keep your oven in front, probably 10" or 12" to start off, then adjust as needed.

Top Comments

  • Fantastic! Wish we had some of the phoney Global Warming here in Ireland!

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All Comments (48)

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  • Hi there, I must say great idea and great vid thanks heaps. You might try basting the vegies and meat in its juices at intervals. I am going to try this :)

  • @celticcrossarts you don't really need global warming to cook with a solar oven. just a clear day :) I've seen many people cook on days where there's snow.

  • You sound like a fatass, just sayin...

  • SHIIIIIIIT! you did a good job dude.

  • fencekid isn't exaggerating. NEVER LEAVE THEM OUTSIDE. Lean one against something in the shade & think you're safe? If the sun crosses its path again tomorrow it can ignite combustibles instantly. They can melt steel!

    I'm experimenting with solar cookers & fresnels & parabolics also & searched for a good recipe for a pork roast which is how I ended up here. Last week was ribs with Stubbs Rub & Mopping sauce. Damn they were good. Think I'll try some apples & raisins in mine. Nice video man. 8^)

  • this is HOT!!! haha I wanna try it!

  • does it taste good when its finished? :O

  • this video is premium

  • you are not supposed to pick at a roast while it's cooking : p

    great vid though, thanks for sharing

  • where do I get one of those lens?

    How about using this to heat a green house?

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