If you are in an emergency situation and have no power, what do you do when you open some of your food and find it infested with insects. An easy way to destroy the infestation is to spread the food out on a shallow pan and place it in your solar oven for about an hour. This will kill the insects and lava. Try and keep the temperature at about 200 degrees. Remove as many bugs as possible and use the food in a normal manner.