Trying to make a solar cooker and I'm wondering if glass would work better than plastic sheets to keep the heat in. Well?
Yes A double pane glass could work even better, the gap insulates and helps retain heat. Note that double pane glass is sealed so you would have to work with the size you get. It also may have a coating inside that lets heat (infrared light) pass one way easier than the other. One way would keep heat inside in cold climates or reversed would help keep heat out in hot climates.
