Bread With No Time to Rise

Matzah is unleavened bread, made from nothing more than flour and water, eaten during Passover in direct commemoration of the exodus from Egypt, when the Israelites, according to the biblical account, left in such haste that their dough had no time to rise before they departed. The Talmud, in tractate Pesachim, sets out detailed regulations governing exactly how matzah intended for the seder must be prepared, and traditional Orthodox practice, following this discussion, imposes a strict eighteen minute limit from the moment water first touches the flour to the moment the dough finishes baking, since any longer interval risks the beginning of fermentation that would render the bread leavened, chametz, and therefore forbidden for Passover use. This tight production window has shaped matzah baking as a genuinely specialised, time pressured craft, historically requiring dedicated ovens, trained bakers working in coordinated teams, and careful advance preparation of both ingredients and equipment to guarantee the process can be completed correctly within the permitted time for every batch produced ahead of the holiday. Communities producing matzah for sale generally undergo rabbinic supervision confirming the timing and ingredients meet the required standard, a certification many observant households look for specifically before buying matzah for their own seder table.