Saturday, Topps Meat Company recalled an additional 21.4 million pounds of ground beef, to the 300,000 pounds it recalled Tuesday. CNN reports the company recalled the beef because, according to the company, it may be contaminated with E. coli. The ground beef products being recalled have a "sell by date" or a "best if used by date" between September 25, 2007, and September 25, 2008, Topps' statement said. According to CNN, a statement from the U.S. Department of Agriculture said they're investigating 25 illnesses across the country as a result. According to Reuters the company said the problem was found through sampling by the New York State Department of Health, as part of their investigation into reported illnesses which they've coordinated with the Centers for Disease Control and Prevention. They also said that products affected by the recall were already distributed to stores and food services throughout the United Sates, and the vast majority of the recalled product has been consumed according to Topps.