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 until it develops dark spots, then set aside to cool and, if sufficiently thin, to harden to crispness. Dough is considered to begin the leavening process 18 minutes from the time it gets wet; sooner if eggs, fruit juice, or milk is added to the dough. The entire process of making matzo takes only a few minutes in efficient modern matzo bakeries. After baking, matzo may be ground into fine crumbs, known as matzo meal. Matzo meal can be used like flour during the week of Passover when flour can otherwise be used only to make matzo. There are two