精せい白はく

noun, noun or participle which takes 'suru', transitive verb

refining; polishing (of rice)

Primarily used for the milling or polishing of rice to remove the bran layer, producing white rice. Can also refer to refining other grains or materials.

• 玄げん米まいを精せい白はくして白はく米まいにする。

  Brown rice is polished to make white rice.

• この工こう場じょうでは小こ麦むぎの精せい白はくを行おこなっている。

  This factory carries out the refining of wheat.