A method of minimizing contamination of processed grain and processed food
products is disclosed. The method can include selecting seeds which are
known to contain a desired variety, inspecting a grower's operation and
machinery to certify that the operation is free of contamination prior to
harvest, harvesting the crop, inspecting the processing facility to
verify that its operation is free of contamination prior to harvest and
processing the crop into processed grain or food products. The method is
suitable for minimizing or preventing contamination of non-GMO processed
grain by GMO seeds, or for minimizing or preventing contamination of GMO
processed grain by non-GMO seeds.