Primary processing of pulses
Dry pulse seeds have a tight and fibrous seed coat (husk or skin) that envelops the cotyledons, which often is indigestible and may have a bitter taste. In grains like cowpea and green gram, the seed coat is thin forming 8-10% of the grain, whereas in Bengal gram and tur, they are thick and constitute 10-14% of the grain. Primary processing of pulses involves cleaning, removal of husk or skin and splitting.