Publix has issued a voluntary recall of its Deli White American cheese.

The supermarket chain said the cheese, made by the company Great Lakes Cheese, may contain “foreign material.” Publix officials say the “foreign material” referred to in their press release is “small fragments of metal on the surface.”

The product was sold from Publix deli refrigerated cases and may have been sold in custom-order subs from Thursday, October 3 until Friday, October 11.

Publix has pulled the potentially impacted product from its shelves.

Customers who bought the cheese can return it to their local Publix for a full refund.