One who separates pulse on Yom Tov — Beis Shammai say: He must separate the edible parts and eat. But Beis Hillel say: He may separate in his usual manner — into his lap, into a basket or into a large plate; but not on a board, nor with a fine sieve, nor with a coarse sieve. Rabban Gamliel says: He may also rinse [the pulse] and skim [the chaff].