Take the 2-minute tour ×  What are the regulations concerning
the passover ceremony and the use of yeast in bread? Is eating
bread made without yeast significant and meant to represent
anything in particular?  Does this restriction further imply
removing anything fermented or corrupted and not partaking in
these during passover (i.e. alcohol)?  share|improve this
question Welcome to Judaism.SE, and thanks very much for this
question, which gets at the meaning behind one of Judaism's most
widespread practices. –  Isaac Moses May 12 '11 at 2:38 @Isaac
Moses, Glad to be here to learn, thanks for the edit. –  Aran
Mulholland May 12 '11 at 2:45  2 Answers 2  up vote 7 down vote
accepted  Chametz is prohibited to eat or own on Passover, and
this includes any flour made of the five grains that has come
into contact with water for enough time to halachically ferment,
which is a period of at least 18 minutes.  Se'or, which is the
heavily-leavened sourdough that was commonly used as a leavening
agent, is also prohibitt