You're going to want to check your ground beef before you grill out this Memorial Day weekend. The USDA’s Food Safety and Inspection Service says stores in Michigan and eight other states may have received beef contaminated with E. coli O157:H7.

On Monday, we told you that the FSIS announced that 1.8 million pounds of ground beef products were being recalled because they could be contaminated. The have since named five retailers that may have received the tainted beef.

They are as follows:

Gordon Food Service Marketplace stores in Florida, Illinois, Indiana, Kentucky, Michigan, Ohio, Pennsylvania, Tennessee and Wisconsin

– Surf N Turf Market in Sebring, Florida

– Giorgio’s Italian Delicatessen in Stuart, Florida

M Sixty Six General Store in Orleans, Michigan

– Buchtel Food Mart in Buchtel, Ohio

The meat is in the process of being removed from store shelves, but consumers should return or throw away any meat that has the code EST.2574B and a production date between March 31 and April 18, 2014 on the label.

The ground beef is sold under a variety of labels, but it comes from Wolverine Packing Company in Detroit.

The list of stores released Wednesday is not final. More establishments will likely be added as the USDA continues its investigation.