Date of this Version



© 1992, The Board of Regents of the University of Nebraska on behalf of the University of Nebraska–Lincoln Extension. All rights reserved.


Characteristics of corn used by industry are discussed here. Publications frequently refer to the term "Corn Quality," but this term means little without being placed in context. The Official U.S. Standards for Grain defines Corn Quality for typical marketing transactions involving grain marketed in the United States. It rates corn quality based on purity, color, the amount of broken and foreign material, total numbers of damaged kernels (including heat-damaged, sprouted, frosted, weather or ground damaged, moldy, diseased), heat-damaged kernels, stones, moisture, and test weight. Official standards, however, are only useful as general indicators of grain quality.