What’s the maximum temperature attained in a concave reflector type solar cooker ?

The temperature produced in concave reflector type solar cooker is usually in the range of 1800C to 2000C depending on its size and the quality of reflecting surface.A solar cooker is a device which uses the energy of direct sunlight to heat, cook or pasteurise drink. Many solar cookers currently in use are relatively inexpensive, low-tech devices, although some are as powerful or as expensive as traditional stoves, and advanced, large-scale solar cookers can cook for hundreds of people.