Breads for Sandwiches

The majority of sandwiches are made with leavened breads, which are made with yeast. These breads have a soft, porous interior, called the crumb, and a firm or crisp exterior, called the crust. Because unleavened breads do not contain yeast to make them rise, they have a flat shape and are also called flatbreads. Some leavened breads are fabricated to give them a flat appearance as well. These are called yeasted flatbreads.