Moisture migration problems may occur when the temperature of the grain in the granary changes greatly. When the grain is stored in the cold winter temperature, the outdoor temperature drops to -6° or even lower. This temperature drop will cause the grain and air temperature near the silo wall to drop. , because the grain has quite good insulating properties, the temperature and humidity of most of the central grain and the silo wall grain will be quite different. Improper temperature control can cause moisture to move or migrate from one part of the grain to another, where it can accumulate and cause spoilage problems. Minor moisture migration problems can lead to severe spoilage. Check the grain frequently for signs of moisture migration.