The possibility of aflatoxin in harvested corn is a frightening prospect to all market participants. Aflatoxin is a carcinogen produced by certain mold fungi, and occurrence is increasingly common in corn during periods of drought. The fungus reproduces by spores and can populate quickly when corn is not stored properly. Aflatoxin can work directly into the meat and milk of animals that consume it. It then can be passed on to humans and potentially cause liver cancer. The pasteurization process does not destroy aflatoxin residues. As a result, nearly every nation has regulations in place to limit its intake.The United States normally does not even allow corn infected by aflatoxin to be blended back into the food chain. In drought years th...