Reply To: K'zayis Home › Forums › Yom Tov › Pesach › K'zayis › Reply To: K'zayis March 20, 2013 8:27 pm at 8:27 pm #1146848 MDGParticipant “Sam2 Kezais is a unit of volume, not weight.” There are different views about that. Many Sefardic Poskim, like Rav Ovadya, go by weight.