Hi All,
Two of the kids and I decided to do some experimenting this weekend, making our own solar cookers. I'd heard that you could possibly make one with just a piece of cardboard covered in tinfoil and folded in half. I have actually tried those before, and they weren't great, but kinda worked... So, we set to work and made a couple on Saturday.
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Cooker number 1 |
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Cooker number 2 |
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And the waiting begins... |
Well, they failed miserably (as could be expected). We left them for a few hours, and all that happened was that the egg congealed somewhat, and didn't change at all. Even near the hottest part of the day, when we covered the plates with glass, we still had no change whatsoever.
We decided to research designs and try again on Sunday morning.
Then Sunday morning came, and surprise, surprise... It was heavily overcast :( We delayed bothering with the new design since the primary requirement was to actually have some sun in the first place.
We went out shopping (and have hopefully finally found a replacement washing machine - yay!), only to realise that near the end of our shopping trip, the sun was blazing happily in the sky, free of cloud. I had to inform the kids at this stage that as it was around 4pm, we'd have no chance of making the cooker and testing it properly, since the sun was losing it's heat...
But they begged to do it anyway, which I'm super glad happened, as it actually turned out to be at least a good time for testing our new cooker. It was just before 5pm when we were ready to go.
The cooker was made from a plastic storage cube and a cardboard box, with polystyrene blocks as insulation in between the two. We then covered the cardboard box with tinfoil, created some reflectors from cardboard and foil (yesterday's solar cooker failures, chopped into the reflector shapes). After that, I put a small muffin pan inside (the only black cooking container I had that was small enough), and covered the cooking area with some clear cellophane.
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Side view |
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Cooker set up and loaded with an egg |
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Close up as the cooking started |
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Finished result |
As it was so late in the day, we didn't manage to get the egg fully cooked, but we tested the temperature around 5:30pm at a steady 60 degrees Celcius. We took the egg out after the sun had gone behind the clouds for too long and we couldn't get any higher than 40 degrees.
Hopefully tomorrow I'll get to try out some muffins, but still - SUCCESS!
Love to All,
Mama Fern