Another reason why I like kamados: They are self-cleaning. This is how I clean each of my kamados a couple of times per year. A SNS Deluxe Kamado is used in this tutorial but this will work on any ceramic kamado as well as on some of the insulated double walled metal versions I have including the Char-griller Akorn and the Broil King Keg.
SNS Kamado affiliate link: http://snsgrills.com?afmc=BNB