Tips for drying tough and damp canola

For long-term storage of canola, the ideal is 8% moisture and less than 15°C. Spoilage risk is high for tough and damp canola. Canola is considered “tough” at moisture levels between 10% and 12.5%. “Damp” is anything above that. With tough canola, aeration with adequate airflow can be enough to dry it to safe storage levels as long as air has capacity to dry: warm with low relatively humidity (RH). At RH values above 70%, the equilibrium moisture content will be above 8% to 9%, meaning sufficient drying for safe long term storage is difficult to achieve. Drying canola with aeration alone also requires sufficient air flow* and time to move the drying front to the top of the grain mass. Damp canola will require heated air drying and rigorous management to condition it for safe storage. No matter how good the harvest weather or how dry the harvested crop, all canola should be conditioned after it goes into the bin.

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Canola storage risk is lower if canola is below 8% moisture and 15°C.