Unleavened bread Unleavened bread Unleavened bread is any of a wide variety of breads which are not prepared with raising agents such as yeast. Unleavened breads are generally flat breads; however, not all flat breads are unleavened. Unleavened breads, such as the tortilla and roti, are staple foods in Central America and South Asia, respectively. Unleavened breads have symbolic importance in Judaism and Christianity. Jews consume unleavened breads such as matzo during Passover - various traditions explain this usage. Unleavened bread also features in some Western Christian liturgies during the Eucharist, a rite derived from the Last Supper when Jesus broke bread,
Sacramental bread Sacramental bread Sacramental bread, sometimes called altar bread, Communion bread, the Lamb or simply the host (), is the bread used in the Christian ritual of the Eucharist (also referred to as the Lord's Supper or Holy Communion, among other names). Along with sacramental wine, it is one of two "elements" of the Eucharist. The bread may be either leavened or unleavened (appearing as a wafer), depending on tradition. Roman Catholic theology generally teaches that at the Words of Institution the bread is changed into the Body of Christ (see transubstantiation), whereas Eastern Christian theology generally views the epiclesis as