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
Conservation and restoration of ceramic objects and grease may be held on the surface loosely by electrostatic forces or weak chemical bonds and are easily removed. Some deposits, such as calcium salts, can be strongly attached to a ceramic surface, especially if the surface is unglazed. There are two main methods in which ceramics are cleaned and treated: mechanically and chemically. Not all ceramic pieces are dry when they need cleaning. Some ceramics, such as those that are excavated archaeologically, will be damp or wet in nature. Conservators tend to remove the surface dirt before the object is completely dry. This is done because it is