LEBANON, Tenn. (NewsNation) â A company based in Middle Tennessee is voluntarily recalling 913 cases of Alfredo sauce sold in 41 states over concerns about salmonella contamination. The Coffee Connexion Co., based in Lebanon, initiated the recall on May 6 because its sauce contains dry milk powder that its supplier previously recalled due to potential salmonella contamination, the U.S. Food and Drug Administration said in an enforcement report.