From the morning of Passover eve until the conclusion of the festival -- for
approximately eight days and eight hours -- we avoid
eating chametz or anything containing the slightest vestige thereof. It
is also forbidden to own chametz, to derive benefit from chametz in
any way, or to have chametz physically present in our domain, during this
time.
Because chametz forms such a pervasive part of our lives during the rest of
the year (try imagining a human habitat without a single cookie crumb!), getting
rid of it for Passover is no easy task. Preparations to make the home "kosher
for Passover" begin days, even weeks, before the festival. But for those who
make the investment, the reward is an especially meaningful Festival of Freedom.
Attaining a chametz-free Passover includes six basic steps: cleaning
the home, setting up the Passover kitchen, and selling, searching
for, burning, and nullifying chametz.