For practicing Jews, Passover is a time to remember their deliverance from captivity in ancient Egypt. Here are 12 facts about Passover that you wouldn't have learned from a yearly viewing of The Ten Commandments. iStockOne of the most important parts of Passover preparations is cleaning the house of chametz, or leavened food. The alcohol was a problem because it was grain-derived and thus unacceptable for Passover, a problem that was solved by switching to fermented molasses. In the years since, Maxwell House estimates that it has published 50 million Haggadahs, which were even the preferred text for the Obama White House Seder.