Coeliac disease By January 2004, extremely low-gluten Church-approved hosts had become available in the United States, Italy and Australia. As of July 2017, the Vatican still outlawed the use of gluten-free bread for Holy Communion. The Jewish festival of Pesach (Passover) may present problems with its obligation to eat matzo, which is unleavened bread made in a strictly controlled manner from wheat, barley, spelt, oats, or rye. This rules out many other grains that are normally used as substitutes for people with gluten sensitivity, especially for Ashkenazi Jews, who also avoid rice. Many kosher-for-Passover products avoid grains altogether and are therefore gluten-free.
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