The U.S. Food and Drug Administration has elevated a recall of Alfredo sauce distributed in 41 states to its most serious classification after they say a supplier flagged an ingredient for possible Salmonella contamination.

According to the FDA notice, Tennessee-based The Coffee Connexion Co. Inc. voluntarily recalled the product on May 6 because it contains a dry milk powder ingredient that was recalled by the supplier due to potential Salmonella contamination.

On June 4, the FDA designated the recall as a Class I event, the agency's highest risk category.