There is much talk in the industry about corn needing to be delivered at a lesser moisture content than in the past. We recommend that you have a conversation with your grain buyer in order to understand what they expect. It is not a benefit to have a bin of grain that is not acceptable to the buyer. Drying corn to 13% or 14% takes more time and fuel.
When comparing 10pt. moisture removal: 24%-14% takes approx. 15% more time and energy than 25%-15% does. When comparing 23%-13% to 24%-14%, it can take as much as 30% more time and energy.
Maximum Allowable Storage Time (days)
|Moisture Content||Temp@ 40°||Temp@ 50°||Temp@ 60°||Temp@ 70°||Temp@ 80°|
Grain was put in bins with a great deal of variance in moisture. This will cause issues if the fans are not run long enough to remove the excess moisture. After your grain is dried, run your fans when the weather cools to chill the grain, and be sure to run them long enough. Example: a 20,000 bu. bin with a 10-hp. fan needs to run approximately 50 hours to change the temperature of the grain 10-15 degrees. Grain stores much better when it’s cold and minimizes fungus, mold, and insect activity. The grain must also be warmed back up when the temperatures start to climb back up into the 60’s in the Spring.
WHEN YOU START AN AERATION CYCLE, RUN THE FAN UNTIL IT IS COMPLETE. DO NOT START AND STOP THE FAN IN THE MIDDLE OF A CYCLE.
What is the cheapest and most cost effective thing I can do that will improve storing grain in the bins I own now?
The first thing I would recommend is to make sure your existing bins have large enough fans and the correct number of roof vents to provide adequate airflow through the grain. A 14″ fan and 1 roof vent on a 20,000 bushel will not provide enough airflow to effectively move air through the grain to maintain it properly for storage.