A well-designed solar oven can reach internal temperatures of 350 to 400?F, which means it can purify water, roast meats, and even steam vegetables.

A well-designed solar oven can reach internal temperatures of 350 to 400?F, which means it can purify water, roast meats, and even steam vegetables.

A well-designed solar oven can reach internal temperatures of 350 to 400?F, which means it can purify water, roast meats, and even steam vegetables.

Finally, black construction paper is used to absorb sunlight, and increase the overall temperature of the solar oven. This combination of simple engineering makes baking s’mores easy and fun!

The maximum temperature measured was 86.5 C (187 F), but unfortunately the sun didn’t stay high enough to maintain that temperature for the required time.

Eventually when temperatures inside of the cardboard box get warm enough, it will act as an oven and heat up the marshmallow for the s’more.