ABSTRACT

The debearder does not separate the seed stream into different fractions; rather, it changes the seed’s condition and flowability by abrading it to rub off awns, excess chaff, appendages, etc. An early hand-operated machine is shown in Figure 16.1. This debearding helps the seed to flow easier through subsequent operations. Also, in most cases, removing excess appendages makes it easier and more accurate to separate different kinds of seed.