The company also pleaded guilty before a federal magistrate in Sioux City and agreed to pay a $6.79 million fine. Quality Egg acknowledged paying bribes to officials and selling mislabeled eggs.
Austin "Jack" DeCoster, 79, of Turner, Maine, and his son, Peter, 51, of Clarion, Iowa, pleaded guilty to a federal misdemeanor, selling contaminated food across state lines. They face fines of $100,000 each and up to a year in prison.
U.S. Magistrate Leonard Strand did not set a sentencing date and allowed the father and son to remain free on bail.
Almost 2,000 cases of Salmonella, a potentially deadly infection, were linked to Quality Egg, which also did business as Wright County Egg, and Hillandale Farms. The company recalled 550 million eggs.
2014: The Year in Music [PHOTOS]