http://www.GreenJoyment.com/solar-cookers Carrie and I got these aluminum panels for free. Carrie worked at a printing press and these aluminum panels were free b/c they were misprinted. With a little rubbing compound and a LOT of rubbing, they become about as shiny as mirrors, which will absolutely mean they will reflect more sun, which will make our food cook warmer. Pretty cool, and the price is right - free. http://www.GreenJoyment.com/solar-cookers