We made a solar oven using a plastic cart usually found in recycling bins, covered it with cardboard and sealed the edges.
We also replaced 90% of the old clothes with straw (dry leaves or dry mulch can also be used) for insulation.
It was first test, it appears to work...we need more testing to verify.
For some people around the world, this maybe a better solution than old clothes.
see
• Easy and Simple Solar Oven, Plastic C...
Any questions [email protected]
Thanks
Kostas