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How does a solar cooker trap heat?

Plastic covering?

Greetings Cherie Ann,

Thank you for your solar cooking question.

A solar cooker does have to trap or retain heat in order to work effectively, otherwise the temperatures would only rise so far and would not be sufficient to actually cook food.
But, the question: How to trap the heat generated from the energy of the sun's rays?

Some people show plastic being used for the glazing (cover) of a solar cooker such as the pizza box solar cooker, but plastic can melt very easily and usually shrivels up when hot, so it is not the best choice for covering or lid on a solar box cooker. Of course you can use an Oven Roasting (turkey) bag to trap the heat in your solar box or panel cooker. These bags are designed and manufactured to withstand heat and to not "0ff-gas" when hot. Here you can see how a bag is used in a simple solar panel cooker

For most solar box cookers you would want to use a glazing that does not melt or break easily, preferably something like tempered glass.

There is much more that can be suggested and discussed with regards to how to trap and retain the suns energy in a solar cooker so we suggest you also look at some more of our site pages and outgoing links on our site that can direct you to more helpful information.


Comments for How does a solar cooker trap heat?

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Jan 11, 2020
Awesome Very Helpful NEW
by: Indian Bhai

Thanks Again You Gave Me Very Well Knowledge About Solar Box Cookers

May 07, 2018
by: Anonymous


Mar 20, 2018
Garbage info NEW
by: d'brickashaw

garbage information. you gave one example needed more:(

Sep 22, 2017
science fair topic. NEW
by: Lilli

Hey, I was scanning pages for my 8th grade science fair and skimmed across this one. I am making a solar oven and I would appreciate it if you put more information about trapping heat in a solar oven. Please and thank you! It would mean a lot.

Apr 29, 2016
science fair project for 7th grader
by: bryce robbins

does a smaller solar oven work better than than a bigger one, I'm not sure but i went with smaller

Sep 21, 2014
by: bob

interesting, but do smaller solar ovens work better than bigger ones?

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