Texas Natural Meats, a Lott, Texas establishment, is recalling approximately 489 pounds of frozen raw, ground beef products that may be contaminated with Shiga toxin-producing E. coli (STEC) O103, the U.S. Department of Agriculture’s Food Safety and Inspection Service (FSIS) announced today.

The frozen raw, ground beef items were produced on Aug. 8, 2017.  The following products are subject to recall:  [View Label (PDF only)]
1.00-lb. bags of “Green Field Farms Rogers Texas Ground Beef.”  The bags display the “PRODUCTION DATE 08.08.2017” and also display the “EXPIRATION DATE 08.08.2020.”  The bags are labeled “COOK USE ONLY” with the instruction “DO NOT refreeze after defrosting.”  
The products subject to recall bear establishment number “EST. 34449” inside the USDA mark of inspection. These items were shipped to a retailer who sold the product at a farmer’s market in Roger, Texas.
The problem was discovered on June 19, 2018 by FSIS during routine inspection activities. The product was tested by the establishment and found to be positive for STEC O103 under their sampling program. …

The only way to confirm that ground beef is cooked to a temperature high enough to kill harmful bacteria is to use a food thermometer that measures internal temperature, http://1.usa.gov/1cDxcDQ.