How often must a Sun Oven be refocused?
The need to refocus depends a great deal on what you are cooking, the time of day, and the temperature you wish to maintain. A good rule of thumb is to plan to readjust every 30 minutes to maintain maximum heat. At noon the sun is high in the sky and moves quickly past the maximum focus point, creating the need to refocus more often. Later in the day you will not need to refocus as often. The Sun Oven is equipped with a built in Levelator, which keeps food level and avoids spills while being refocused.