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A rice mill's head rice yield falls sharply although no milling settings have been changed.

What is the most likely cause?

  • A.The husk aspirator is set too low
  • B.The paddy separator has been bypassed
  • C.The incoming paddy is already fissured
  • D.The whitening pressure has been reduced

Answer: C

Correct answer: The incoming paddy is already fissured

Nothing in the mill has changed, so the change must be in what is entering it. Kernels fissured during drying or by rewetting break as soon as any pressure is applied, and no adjustment of the whitening machines can put them back together. The remedy lies at the drying yard, which is why head rice yield is largely determined before the paddy reaches the mill.

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