Masonry oven and the fire won't burn well. Modern masonry ovens sometimes bear little resemblance to their forebears, and can have just a cast deck (similar to a pizza stone) inside a more conventional oven exterior. Such devices are primarily used in commercial settings, though tabletop models are available. Cob is the British name for what is essentially adobe (from Arabic, "al toba," meaning "the mud;" "cob" is the Anglo-Saxon word for "lump," and is also used to describe round loaves of bread, or small, compact horses). As the most common building material on the planet, earth, clay and "cob" construction have
Kenya Ceramic Jiko remain slightly porous when temperatures reach 1150 °C; the clay should not warp or change shape when fired at 1250 °C. When the clay is fired up, it should turn to a light pink to white colour, and, to reduce the likelihood of cracking, it should shrink less than 8% after being fired. Clay which meets all the above standards is generally referred to as a "fireclay". To produce the Kenya Ceramic Jiko, two types of skilled labour are needed, a metalworker, and a clay worker. Other than a hammer, all other tools needed to manufacture the Kenya Ceramic Jiko