This is not necessarily a problem for corn to be fed to livestock. However, it will be discounted at the elevator. Research indicates that exposure to drying air temperature above 200 degrees for time periods in excess of 2 hours will likely result in some degree of browning. If it does, then the drying temperature needs to be reduced to 180 degrees or less. In-storage cooling requires only a good, positive pressure aeration system in a storage bin.
Corn is unloaded from the dryer hot and cooled slowly in the storage bin.
Dryeration involves unloading hot corn into a cooling bin that has a full-perforated floor and then keeping the corn hot for at least 8 hours before cooling is started. After cooling, corn is moved to a normal, aerated storage bin. Dryeration requires some extra grain handling and possibly an extra bin, but dryer capacity is significantly increased and about 2 percentage points of moisture are removed during cooling. Corn cooled in a dryeration bin is less susceptible to breakage than corn that is cooled rapidly in a dryer. High moisture soybeans can be successfully dried using current corn drying technology.