Food Safety

Published on June 9th, 2013 | by Heather Carr


USDA Proposes Mandatory Labeling for Mechanically Tenderized Beef

Raw Beef

A proposed rule by the USDA will require beef processors to label any cut of beef that has been mechanically tenderized and include cooking instructions that will kill any potential pathogen that has been introduced to the beef by the process.

Mechanical tenderization is the process of pushing small needles or blades into a cut of beef. The punctures in the beef make it more tender, but if there are any pathogens on the surface of the meat, the needles or blades can push the pathogens into the meat. Cooking such meat to a rare or medium rare temperature only kills the pathogens on the surface, not inside the beef, and people can get sick from eating the beef.

Between 2003 and 2009, 174 people fell ill from e. coli contaminated beef that had been mechanically tenderized. One of those people died from the illness.

An estimated 50 million pounds of beef each month is mechanically tenderized, none of which is tested for pathogens after tenderization. That’s 37% of the nation’s beef production.

Different stores have different policies – if they have a policy concerning mechanically tenderized beef at all. Whole Foods and Meijer stores don’t sell any mechanically tenderized beef. All the beef Costco sells has been mechanically tenderized. Omaha Steaks doesn’t tenderize their beef mechanically, but they do inject marinades into some of their products.  Many stores don’t know if the beef they sell has been mechanically tenderized.

Currently, there is no requirement to label mechanically tenderized beef. After mechanically tenderized filet mignons sold at Costco were implicated in an e. coli outbreak in Canada last year, Costco began voluntarily labeling all its beef. The label simply says something like, “blade tenderized” and mentions the recommended cooking temperature of 160 degrees.

The American Meat Institute, an industry organization, says mechanically tenderized beef is just as safe as intact beef (beef that has not been punctured or ground up), if properly cooked. The problem is that consumers don’t know which beef cuts have been mechanically tenderized and therefore don’t know which beef is unsafe to serve medium rare.

The proposed rule by the Food Safety and Inspection Service will make it mandatory for all mechanically tenderized beef and all beef injected with a marinade to be labeled and to include cooking instructions specific to the cut and thickness of the beef.  The rule doesn’t cover “meat glue“, where a meat processor will take leftover pieces of raw meat, glue them together, and call it a high-priced cut.  Maybe a later rule will cover that.

It is in the beef industry’s best interests to label risky cuts of beef. Every time a foodborne illness outbreak occurs, everyone involved in making that product – from farmers to processors to grocery stores – loses business.

Raw beef photo via Shutterstock

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About the Author

Heather Carr loves food, politics, and innovative ways to make the world a better place. She counts Jacques Pepin and Speed Racer among her inspirations. You can find her on Facebook or .

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