Bedikat chametz, or bedikas chametz (בְּדִיקַת חָמֵץ, Tiberian: bəḏīqaṯ ḥāmēṡ) is the Mitzva to search for chametz before the Jewish Holiday of Passover. The search takes place after nightfall on the evening before Pesach (the night of the 14th of the Hebrew month of Nisan).[1][2]
In Jewish law, there is an accepted three-step process for dealing with chametz before the Passover:[3]
After the checking ceremony, the chametz is nullified; that is, a declaration is made that any chametz not found during the checking is considered like "the dust of the earth", and the next day the chametz that was found during the checking is burned. (The commandment is to do this through burning, but it can also be destroyed in other ways, such as throwing it into the sea).[9]