Question

what is hand picking techniques

Answer 1

Handpicking technique is a method to remove slightly larger impurities like pieces of dirt,stones and husk from wheat,rice and pulses by hand

Answer 2

its is one of the sorting techniques to separate the odd things out from the desired material
example - the pebbles are sorted out from the rice , by hand picking
the undesired material is identified by its shape , colour, etc and then picked up by hand and kept aside ,to get the desired material without impurities
handpicking is done when the size of particles is bigger
example pulses, and pebbles