Sacramental bread adopted the use of unleavened bread due to Liturgical Latinisation. A Host is a portion of bread used for Holy Communion in many Christian churches. In Western Christianity the host is often a thin, round unleavened wafer. In the Roman Rite, unleavened bread is used as in the Jewish Passover or Feast of Unleavened Bread. The Code of Canon Law, Canon 924 requires that the hosts be made from wheat flour and water only and recently made so that there is no danger of spoiling. Hosts are often made by nuns as a means of supporting their religious communities. However,
Matzo on the first night of Passover. ("Shĕmura" wheat may be formed into either handmade or machine-made matzo, while non-"shĕmura" wheat is only used for machine-made matzo. It is possible to hand-bake matzo in "shĕmura" style from non-shmurah flour—this is a matter of style, it is not actually in any way "shĕmura"—but such matzo has rarely been produced since the introduction of machine-made matzo.) Haredi Judaism is scrupulous about the supervision of matzo and have the custom of baking their own or at least participating in some stage of the baking process. Rabbi Haim Halberstam of Sanz ruled that machine-made matzo