Paddy in its raw form cannot be consumed by human beings. It needs to be suitably
processed for obtaining rice. Rice milling is the process which helps in removal
of hulls and barns from paddy grains to produce polished rice. Rice forms the basic
primary processed product obtained from paddy and this is further processed for
obtaining various secondary and tertiary products.
The basic rice milling processes consist of:
Pre Cleaning : Paddy cleaner is the most essential equipment in
a rice mill, as it separates all the impurities like dust, straw, sand, clay and
heavy particles of even an uneven sizes from paddy. The advantages with the paddy
cleaner are that increases the life of rubber rollers and the percentage of oil
in bran.
De-stoning : Separating small stones from paddy.
Husking : This dehusker machine is used for dehusking of paddy
and removing of husk. The machine is based on centrifugal principle.
Husk Aspiration : Separating the husk from brown rice/ unhusked
paddy.
Paddy Separation : Separating the unhusked paddy from brown rice.
Whitening : Removing all or part of the bran layer and germ from
brown rice . The whitener is used for whitening (i.e. removal of bran) of brown
rice to white rice. Through a smooth flow of rice and the efficient aspiration system
inside the machine, the rice is whitened very gently.
Polishing : Improving the appearance of milled rice by removing
the remaining bran particles and by polishing the exterior of the milled kernel.
Length Grading : Separating small and large brokers from head rice.
Blending : Mixing head rice with predetermined amount of brokers, as required by
the customer.
Weighing and bagging : Preparing the milled rice for transport
to the customer.
Parboiling : Helps in improving the nutritional quality by gelatinization
of starch inside the rice grain. It improves the milling recovery percent during
deshelling and polishing / whitening operation.