Which of the following methods is used to clean rice before cooking?
Handpicking
The explanation for the correct option :
(A) Handpicking: This method is used to separate stones and slightly large particles and impurities by hand. Chaff and husk are already separated while processing and only small impurities like stones remain to be separated.
The explanation for the incorrect options :
(B) Sieving: This method separates fine particles which are sieved through holes and bigger impurities remain on the sieve.
(C) Winnowing: This method is used to separate chaff and husk from rice and thus heavier particles are separated from lighter particles with the help of wind. Winnowing cannot separate heavier particles like stones from rice.
(D) Filtration: It is the process in which solid particles in a liquid are filtered using filter paper.
Thus, option (A) i.e. handpicking is the correct option.