Sunlight is concentrated to the base of the hole where 10 one gallon black containers of water can be boiled per hour and used for drinking or food preparation. A 210cm(7ft) diameter hole, 150cm(5ft) deep cooks 38 liters(10 US gal) of rice/hr from 11 a.m. to 3 p.m. on an 30°C(85°F) summer day in south central Oregon. Cooking/water boiling containers are accessed via steps carved into the side of the hole. The plates are redistributed with servings of the solar cooked food. When cleaned, the reflective plates can be used as person grooming mirrors until collected the next morning for solar cooking again. The plates rest upon salvaged nails pressed into the sides of the hole. Each plate would be be less than half the diameter of the larger aluminum sheet metal mirrors shown in the image abov