BREAD UNIT is a term used to describe the various components of bread. A LOAF is a shaped mass of dough that has been baked, usually in the form of a rectangular block. A CRUMB is the small pieces of bread that are created when a LOAF is broken or cut. A SLICE is a thin, flat piece of bread that has been cut from a larger LOAF. A PESO is a unit of weight used to measure the amount of bread in a LOAF. A SLAB is a large, thick piece of bread that has been cut from a larger LOAF.