The Giant Company has expanded its recall of Giant and Martin’s brand frozen waffles after being alerted by supplier Treehouse Foods of potential contamination with listeria.

The following products are included in the expanded recall issued Oct. 24:

• Giant/Martin’s Gluten Free Homestyle Waffles, 11.3 oz., UPC 068826756276, all lots/all codes.

• Giant/Martin’s Gluten Free Blueberry Waffles, 11.3 oz., UPC 068826756275, all lots/all codes.

The following products were included in a previous recall issued Oct. 18:

• Giant/Martin’s Homestyle Waffles, 12.3 oz., UPC 068826707392, all lots/all codes.

• Giant/Martin’s Buttermilk Waffles, 12.3 oz., UPC 068826707396, all lots/all codes.

• Giant/Martin’ Blueberry Waffles, 12.3 oz., UPC 068826707394, all lots/all codes.

• Giant/Martin’s Chocolate Chip Waffles, 12.3 oz., UPC 068826707398, all lots/all codes.

• Giant/Martin’ Multigrain Waffles, 12.3 oz., UPC 068826708195, all lots/all codes.

• Giant/Martin’ Chocolate Chip Waffles, 29.6 oz., UPC 068826715002, all lots/all codes.

Customers who purchased an affected product should discard it and contact customer service for a full refund. Because the waffles are frozen, Giant is encouraging customers to check their freezers carefully for the recalled items. If a customer feels they are experiencing illness as a result of a product they consumed, they should contact their health care provider.

The Giant Company, part of Ahold Delhaize USA, operates nearly 200 stores in Pennsylvania, Maryland, Virginia and West Virginia under the names Giant, Martin’s and Giant Heirloom Markets.