Store Grain Cold During Summer Ordinarily grain will have been cooled to about 25 degrees Fahrenheit for winter storage. It can be left at that temperature during the summer or can be warmed to no more than 40 degrees. The aeration system should be covered to limit the natural warming of the grain. Leaving grain cold offers several benefits. Insects are dormant at temperatures below 50 degrees Fahrenheit, and mold growth is limited at lower grain temperatures. Warming the grain ten degrees cuts allowable storage time by approximately half. When cold grain is conveyed during hot summer days, moisture will likely condense on the auger but should not cause problems. Back to Harvest - Storage
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