This thing is awesome! So far I’ve made quick breads, roasts, and boiled eggs in it. While the inside has gotten very hot (I’ve seen it get to about ~325 degrees thus far), the outside remains comfortable to the touch, speaking to the excellent insulation. The door works well to seal in the heat (and steam—I open it and wipe it down periodically), and the hanging racks that adjust when you tilt the sun oven are genius. All in all, I’m am thoroughly impressed with this. It’s so nice to set this out and cook something using just the free solar energy, and without heating up my kitchen (especially during hot months). I’m so glad I choose this one.