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Analysis of Quality Differences between Natural Sun-drying and Mechanical Drying of Rice under Farmer Conditions 
2 Zhejiang Agronomist College, Hangzhou, 310021, Zhejiang, China
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Genomics and Applied Biology, 2026, Vol. 17, No. 1
Received: 18 Dec., 2025 Accepted: 20 Jan., 2026 Published: 16 Feb., 2026
After the rice is harvested, reducing its moisture content has always been a problem that farmers cannot avoid. The common methods are spreading it out to dry in the sun or using a dryer. Both methods have their own drawbacks: when the weather is good, sun-drying saves electricity and money, but in case of rain or overcast days, the risk of moisture return and mold increases, and the quality is not very stable. In contrast, mechanical drying is faster and more uniform in removing moisture, resulting in a higher proportion of whole grains, less broken grains, and better stickiness and elasticity of the cooked rice. However, excessive high temperatures should not be pursued as it may increase the fatty acid value and affect the taste. From a cost perspective, although mechanical drying is more efficient, it consumes more energy, and may not be cost-effective for small-scale farmers. In practice, it is necessary to consider one's own conditions, avoid overly high temperatures, and frequently turn the rice when sun-drying to ensure both efficiency and quality.
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