BYRON TOWNSHIP, Mich. (WWJ) – A West Michigan meat processor is recalling thousands of pounds of ham over concerns about possible Listeria contamination.

Workers at Byron Center Wholesale Meats near Grand Rapids were reportedly observed cutting up whole, fully cooked hams without going through the proper food safety protocol.

The following products are subject to the recall:

Various weight packages of “Seven Sons Family Farms & Co.” Diced Ham (fully cooked), Smoked Ham Sliced (ready to cook/fully cooked) and Smoked Ham Roast (ready to cook/fully cooked).

Various weight packages of “Heffron Farms” Diced Ham (ready to cook), Smoked Ham Sliced (ready to cook), Smoked Ham Roast(ready to cook), Ground Ham Smoked Pork, Smoked Ham Hocks (ready to cook) and Picnic Hams (ready to cook).

Various weight packages of “Byron Center Meats” Semi Boneless Ham (ready to cook), Canadian Bacon (not fully cooked), Smoked Ham Hocks, Smoked Pork Chops (ready to cook) and Smoked Picnic Hams.

The recalled products bear the establishment number “Est. 2592″ inside the USDA mark of inspection. The products were produced prior to March 1, 2013, and were distributed in Michigan and Indiana.

The U.S. Department of Agriculture is advising consumers who have questions about the recall to contact Steve Sytsma, the company’s President, at (616) 878-1578. More information on the recall is available by clicking here.