US firm Valley Meat Co. has voluntarily recalled around one million pounds of ground beef products due to possible contamination with E. coli.

The recall extends only to products that were produced between 2 October 2009 and 12 January 2010 and were sold in California, Texas, Oregon, Arizona and internationally, the firm said today (6 August).

All products subject to the recall bear the establishment number ‘EST. 8268’ inside the USDA mark of inspection as well as a five-digit code that signifies the date they were produced. 

The 2009 products will carry a number between 275 and 365 before the ’09’ ending, and a number between 001 and 012 before the ’10’ ending for 2010 products.

“Because most of the products are sold frozen, we are working with our retailers to remove the affected products from grocery store shelves, and to encourage consumers to dispose of products they may have at home or return them to the place of purchase for a full refund,” the company said in a statement. “The US Department of Agriculture is working with us in retrieving products.”

A full list of the products subject to the recall can be found on the company’s website here.