How can moisture migration be controlled?
Moisture migration is controlled by maintaining uniform grain temperatures throughout a grain storage structure. This requires temperature monitoring, and well controlled aeration. In extreme temperature conditions, in northern U.S. or Canada, temperature differences between outside grain zones, 3-6 feet from bin walls and the center grain mass may vary by 30-50F. The larger the temperature differential between average outside air and average grain temperature, the more difficult it is to control. Moisture migration is more of a management and control problem in northern and central states than southern states.