The Kalko burner is enameled, meaning it is the classic burner that features a thermal resistance underneath and the surface around it is coated with enamel, which results from the application of enamel (glass) onto metal.
It is suitable for use with all types of cookware, while its enameled surface is resistant to high temperatures and does not get damaged from constant exposure to them.
The body of the device is coated with a special paint for durability over time and easier cleaning.