After eating the Challah, before continuing with the meal, the hands must be washed well, and the mouth rinsed out well. Do not wash hands in a sink that has already been made kosher for Pesach; wash in a restroom.
Any Chometz that is left over after the meals should be broken up into small pieces and flushed down the toilet. Alternatively, it may be given to an Aino-Yehudi. It should not be placed in private garbage bins on your property, as that will not be sufficient to remove it from your possession. The Chometz must be gotten rid of before the end of the 5th hour.
After the Chometz is properly disposed of, the text of ‘Kol Chamira’ as well as the ‘Yehi Ratzon’ following it (as printed in most Siddurim) is recited, so that you are mevatel (annul) any Chometz that may still remain in your possession. All members of the family should recite (and understand the meaning of) this text.
