Matzo major forms of matzo. In many western countries the most common form is the hard form of matzo which is cracker-like in appearance and taste and is used in all Ashkenazic and most Sephardic communities. Yemenites, and Iraqi Jews traditionally made a form of soft matzo which looks like Greek pita or like a tortilla. Soft matzo is made only by hand, and generally with "shmurah" flour. Flavored varieties of matzo are produced commercially, such as poppy seed- or onion-flavored. Oat and spelt matzo with kosher certification are produced. Oat matzo is generally suitable for those who cannot eat gluten.
Matzo for the Eucharist are flat, unleavened bread. The main reason for the use of this bread is the belief, that because the last supper was described in the Synoptic Gospels as a passover meal, the unleavened matzo bread was used by Jesus when he held it up and said "this is my body". All Byzantine Rite churches use leavened bread for the Eucharist as this symbolizes the risen Christ. Some Oriental Orthodox and Eastern Catholic Christians use leavened bread, as in the east there is the tradition, based upon the gospel of John, that leavened bread was on the table