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Question:

I Am Building a Solar Oven?

I would like to know.1What materials should I use, (I want fastest cooking time possible), materials that trap heat the best.2The best possible designs, I have seen many designs, and would like some original ones, remember fastest cooking time.3Tips- I have never done this before so tips are definitaly appreciated Thank You If You Provide Quality Information!!!!!

Answer:

Sounds normal to me! Let it cool 15-20 min in the pan, then invert onto yoru platter You don't want it room temp or the apples may stick to pan as it gets room temp(hopefully you greased and floured well, and maybe added parchment paper!) If the apples do stick, just use a knife to flick them out of the pan back into their assigned spot on the cake.
dadnbob nailed itYou definitely want to flip it out as soon as it comes out of the ovenThe juices you see will caramelize and turn solid, not runny, when the cake cools.
Flip it out onto your serving plate when it comes outIf you let it sit and cool the stuff on the bottome becomes sticky and may not come out wellYes, the apples will be on top then.
OKAY I take it that cost is not a primary concern since you said you wanted the fastest possible etc., etcSo, while not going for the most expensive, I will aim you toward something you can actually buildGo to a Plexiglass/Lexan Plastic supplierLook through their catalogs until you find mirrored plexiglass or mirrored lexan sheetIt will be available in 4 foot X 8 foot sheetsYou need one sheetThat will make your solar mirror to focus the sun's raysNext you need some 1 inch diameter aluminum tubingBend this tubing into two arcs of 180 degrees such that the lengths of the aluminum tubes are curved and 8 feet long (three of of them) Next, you will need aluminum end fittings for one inch aluminum pipe: four ELLS two TEES Place them onto the ends of the aluminum pipe curved frames so that you have three curved ribs all connected together into a nice structureNow fit the mirrored plexiglass inside of this curved structure and drill holes to allow screws to pass through the plexiglass and into the aluminum pipeThat will secure the plexiglass to the aluminum frameYou have just assembled a solar mirror which will concentrate sunlight into a thin line two feet out from the inside edge of the plexiglass materialAnything placed along that line will become VERY hotTo further develop this idea, you need to build some kind of mounting assembly, and steering rig so that the mirror can be aimed at the sun, and track it across the sky as the day progressesIt will also be necessary to make some kind of a rotary spit gizmo that will hold the food you plan to cook in the hotest place in front of the mirror Those last two things are refinements of the basic setup so I will let you deal with them as your money and ability dictateHappy CookingZah

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