Matzo "Matzot Mitzvah" (the Shĕmurah matzo eaten during Passover) to a Kohen child to eat. "Egg (sometimes "enriched") matzo" are matzot usually made with fruit juice, often grape or apple juice instead of water, but not necessarily with eggs themselves. There is a custom among some Ashkenazi Jews not to eat them during Passover, except for the elderly, infirm, or children, who cannot digest plain matzo; these matzot are considered to be kosher for Passover if prepared otherwise properly. The issue of whether egg matzo is allowed for Passover comes down to whether there is a difference between the various liquids
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