The present invention provides a method for producing wash-free rice which
does not require washing before cooking. The method comprises the
following steps: preparing polished rice from brown rice polished by a
built-in rice polishing machine and sifted by a built-in sifting machine
and/or polished rice from outside sources; preparing rice polishing bran
(parched bran) used as an abrasive; preparing a mixture consisting of the
polished rice and the abrasive in a desired ratio; stirring the mixture
in a tank by revolving stirring blades such that the polished rice and
the abrasive are mutually rubbed in order to strip sticking bran
including skin bran and foreign debris from the surfaces of the rice
grains; sifting the stirred mixture in order to separate bran from the
rice; separating residual sticking bran and foreign debris from rice
grains in order to obtain finished wash-free rice; and recovering the
separated bran for recycling as the abrasive.