What are the differences in drying requirements for rice and corn using grain dryers?

Date2025-11-18 Back To List

I. Differences in Drying Temperature: As a heat-sensitive crop, rice requires particularly strict temperature control during the drying process. The drying temperature for rice typically needs to be kept relatively low, generally between 50℃ and 65℃.

The drying temperature for corn is usually between 50℃ and 70℃, and sometimes, to improve drying efficiency, the temperature can even be raised to around 100℃ (but care must be taken to ensure that the corn's own temperature does not exceed 50℃).

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II. Differences in Drying Processes: The drying process for rice emphasizes temperature control and uniformity of the drying process. Before drying, the rice needs to be cleaned to remove impurities and chaff to ensure drying effectiveness. During the drying process, the rice should be turned regularly to ensure even heating. After drying, tempering and cooling treatment are necessary to prevent cracking and condensation.

The drying process for corn is relatively complex, requiring a multi-stage drying method. The first drying stage can use high air temperature and large air volume to achieve rapid moisture reduction; the second and third drying stages use low-temperature drying to save energy; the final cooling stage uses a mixed counter-current mode to slowly cool the corn and complete the cooling process. During the drying process, the condition of the corn and the drying effect should be closely monitored, and drying parameters should be adjusted in a timely manner to ensure the quality of the corn and drying efficiency.

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