Bedikat Chametz

The search takes place after nightfall on the evening before Pesach (the night of the 14th of the Hebrew month of Nisan).

[4] Since according to some, a blessing in vain – a bracha levatala – occurs if no chametz was found in the house, there is a widespread custom to 'seed' the area to be searched.

[citation needed] The reasons for the candle, feather and spoon is as follows: It is for most very impractical following through with custom with above described tools.

Every part of every room of the house where chametz may possibly be found must be searched using this process.

[citation needed] Modern versions of this tradition have adapted to include flashlights, glowsticks, and occasionally a roomba with a candle taped to the top.