Spoilage, shrinkage and contamination in farm-stored grains are all costly to the owner. They result in weight losses, heavy market discounts when the grain is sold and loss in palatability as a livestock feed. When these losses occur, the discounts may be anywhere from a few cents to more than a dollar a bushel even for grain that looks "all right" without close inspection.
Hansen, Ralph; Gunderson, Harold; Gilman, J. C.; and Phillips, Richard
"How to Manage Stored Grain,"
Iowa Farm Science: Vol. 9
, Article 2.
Available at: https://lib.dr.iastate.edu/farmscience/vol9/iss2/2