George G. Ruppersberger & Sons, Inc., a Baltimore, Md., firm, is voluntarily recalling approximately 315 pounds of ground beef that may be contaminated with E. coli O157:H7.

The products subject to recall are 10-pound packages of “Ground Beef, Net Weight 10LBS”, with the establishment number “Est 5931” and the package code “627963”.

The ground beef was produced on July 13 and was distributed to restaurants and institutions in Baltimore, Maryland.

The problem was discovered through routine FSIS microbiological testing. FSIS has received no reports of illnesses associated with consumption of this product.