McDonald's U.S.: Beef Patties Not the Source of E. coli Contamination

On October 27, 2024, according to a report by the US Food Safety News Network, McDonald's USA made it clear that after rigorous testing and confirmation, the beef patties in its burgers were not contaminated with E. coli. As a result, McDonald's has decided to resume sales of hamburger products that were previously removed due to suspected E. coli contamination. However, in an effort to ensure food safety, burgers that resume sales will no longer contain raw onion slices that are currently believed to be the source of the contamination.

The U.S. Food and Drug Administration (FDA) has tentatively determined that raw onion slices from a specific supplier may be the source of the E. coli contamination. McDonald's has identified the onion chip supplier as Taylor Farms, a California-based produce company. The onion slices come from a factory in Colorado Springs, Colorado. Taylor Farms said in a statement that the company has voluntarily recalled yellow Onions sent to customers from the plant and is working closely with the Centers for Disease Control and Prevention (CDC) and the FDA to continue their investigation to ensure that the issue is fully resolved and to prevent similar incidents from happening again.