fresnel solar cooker -Solar cooking with Fresnel Lens

July 23, 2013 – 12:22 pm

Cooking ** ham and eggs with the sunlight through a Fresnel lens of plastic. Video Rating: 5 / 5

** Fried an egg for lunch with my fresnel lens solar cooker. Used a small cast iron skillet. It took about as long as a normal stove. The Fresnel lens c … Video Rating: 5 / 5

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  1. 21 Responses to “fresnel solar cooker -Solar cooking with Fresnel Lens”

  2. Free-radical foods. It may cause cancer.

    By saintEmory on Jul 23, 2013

  3. You’ve to be careful of the time you allow the focal point to stay on the food, or you just end up burning it from the top.

    By greatidea11 on Jul 23, 2013

  4. Dont let people fool you…you can get this lens for free on craigslist or any of your neighbors local anywhere. That lens can be found in an old rear projection t.v. right behind the first layer of plastic. Most people are giving the t.v.s away when they break down.

    By mikeezell2003 on Jul 23, 2013

  5. Maybe you could link the lens you got from Amazon….I looked. Could not find a big one like that.

    By Jim Given on Jul 23, 2013

  6. If you’re in the Orlando area I have a lens that’s linear focal. It makes a strip of focus.
    It needs a frame built for it, I’d let it go for 50 bucks or best offer if you’re in the area and want to come pick it up.

    By ElectricianByTrade on Jul 23, 2013

  7. I got mine from

    By McQAC on Jul 23, 2013

  8. Where did you get the plastic fresnel lens?

    By Dlmcguire7 on Jul 23, 2013

  9. Nice work!

    By ohmslaw111 on Jul 23, 2013

  10. It’s to live dangerously :) . Seriously though, the brick just happened to be handy and it could withstand the heat so I used it.

    By RimstarOrg on Jul 23, 2013

  11. What’s the logic in balancing the pan on a tippy chunk of brick?

    By Landrew0 on Jul 23, 2013

  12. I’ve seen his stuff before. He has a nice selection of lenses there.

    By RimstarOrg on Jul 23, 2013

  13. I found a youtube channel you might want to look at (“fence kid”) this guy uses tinted pyrex cookware as ovens for his fresnel lens… Seem to do an excelent job …cornbread & potroast vid

    By horsey4u21 on Jul 23, 2013

  14. It’s just not the same, I know. But I suffer without anyway. :) 

    By RimstarOrg on Jul 23, 2013

  15. How can you eat an egg sandwich without helmans.

    By horsey4u21 on Jul 23, 2013

  16. my dish is 18 inches

    By ronald ferreira on Jul 23, 2013

  17. I’ve never tried popcorn. I’ve heard it can be tricky though. If I understand correctly, popcorn pops because the water inside the corn expands and opens the corn. But you need to apply intense heat. If you do it too slowly then the water in the corn will just evaporate and the corn won’t expand. So usually something like a 3 foot or bigger parabolic dish is needed, or maybe my 2′x4′ fresnel lens will work. I’ll have to try someday.

    By RimstarOrg on Jul 23, 2013

  18. do you have to use oil to cok anything like popcorn my dish woulde pop my corn it was made of copper though

    By ronald ferreira on Jul 23, 2013

  19. I have a larger cast iron pan too that I bought in 1983! I’ve had other types of pans that wore out but that cast iron one still works great. I agree, very tough and durable.

    The next version of this fresnel cooker will have a mirror to direct light from below to the underside like you’re talking about.

    By RimstarOrg on Jul 23, 2013

  20. Now that’s a lunch! I saw this video first on your website but had to comment.

    Great use of the free sun. I like the cast iron pan. I’ve got one of those, too, and it will probably last longer on Earth than me. Tough, durable pans.

    I’ve seen others direct the light on the underside of the pan to heat from the bottom. Have you considered that?

    By field16 on Jul 23, 2013

  21. I got the fresnel lens from a derelict rear projection TV that I found by the road. See my other fresnel lens video for more about this. I just added a link annotation to the last minute of this video and a link to a webpage in the comments. I was surprised at the speed too. I’m currently redesignng the cooker for faster setup.

    By RimstarOrg on Jul 23, 2013

  22. Cool I need one of those. I like that 15 seconds later.  I would rather do breakfast so I would need some cheese, toast and coffee. Cooks really fast wow.

    By shartne on Jul 23, 2013

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