Matzo produce is completely permissible for consumption during Passover, whether or not made according to the laws applying to matzot. As a result, Joseph ben Ephraim Karo, author of the "Shulchan Aruch" or "Code of Jewish Law" (Orach Chayim 462:4) granted blanket permission for the use of any matzo made from non-water-based dough, including egg matzo, on Passover. Many egg matzo boxes no longer include the message, "Ashkenazi custom is that egg matzo is only allowed for children, elderly and the infirm during Passover." Even amongst those who consider that enriched matzot may not be "eaten" during Passover, it is permissible
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