Discussion
Statement I: Tempering between drying passes lowers the average moisture content.
Statement II: Resting allows moisture gradients within the kernel to relax.
In the light of the above statements, choose the correct answer.
Answer: B
Correct answer: Statement I is incorrect but Statement II is correct
Statement I is incorrect. Tempering does not lower the average moisture content - the grain is held without airflow, so there is nowhere for water to go and the average is unchanged.
Statement II is correct and states what tempering actually achieves: resting allows moisture gradients within each kernel to relax, so the surface rewets from the interior. The benefit is a more uniform kernel, less fissuring and a higher head rice yield, and a subsequent drying pass that can remove water from a wetter surface without over-drying it. The gain is in quality and in the effectiveness of the next pass, not in the average moisture.
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