I guess my intent was to say that they are not he same as a Big Green Egg type of cooker.
What is the difference between ceramic and clay?Ceramic materials are end products of clays, glass and cements, typically fired at high temperatures of up to 2000 degrees, F. Ceramic materials are hard, porous, and brittle, and can be semiconductors or insulators.
Clay is a natural material comprised of fine-grained minerals that are the result of volcanic and tectonic plate activity and weathering. Clays show plasticity through a variable range of water content. While clays were the traditional source material for ceramics, modern use of the term ceramics includes other mineral sources.
Clay is one source material for some ceramic end products. And not all clays make good ceramics. Clays are defined by their chemical/molecular structures, and are distinct mineral species found in nature. Ceramics are man-made materials used for industrial and consumer products. Ceramics include porcelain, which happens to be made from a white clay called Kaolin.
More info:A kamado is a traditional Japanese wood or charcoal fired earthen vessel used as a stove or oven. Modern versions of the cooker are produced and sold internationally. They are often marketed as barbecues for outdoor use.
http://en.wikipedia.org/wiki/KamadoWestern Kamado ManufacturersThe American owned and designed Komodo Kamado manufactures its grills in Indonesia. The Big Green Egg is a US company that manufactures their ceramic components in Mexico. Primo, also based in Atlanta, is the only US-manufactured product. Primo is known for producing the only available oval shaped cooker. The Grill Dome is manufactured in India, and the Auplex Kamado and California Kamado in China. Other manufacturers include Imperial Kamado, Kamado Joe, Broil King Keg and Big Steel Keg by Onward Manufacturing and King-Griller by Char-Griller. In Europe there is the MONOLITH Grill. In Australia there is the popular Bear Grills BBQ which is hand crafted in China.