WASHINGTON, D.C. -

Annie's Homegrown Inc. of Berkeley, Calif. has issued a recall of it's frozen pizzas because they may contain metal fragments.

The company voluntarily issued the recall Tuesday for all varieties of Annie's Homegrown Rising Crust pizza. The pizzas are now the subject of a Food and Drug Administration (FDA) recall, the U.S. Department of Agriculture's Food Safety and Inspection Service (FSIS) announced Wednesday.

All varieties of "Annie's Homegrown RISING CRUST FROZEN PIZZA" with a "Best By" date including and between "09Jan13" and "14Sep13" are affected.

The following products are subject to USDA recall:

• 23.6-oz. Organic Pepperoni Pizza, UPC code 0 13562 20000 9

• 25.4-oz. Organic Supreme Pizza, UPC code 0 13562 20002 3

• 22.6-oz. Pepperoni Pizza, UPC code 0 13562 20006 1

• 23.1-oz. BBQ Recipe Chicken Pizza, UPC code 0 13562 20009 2

Each product package above has an establishment number of "EST. 5699", "EST. 15815B", "P-5699" or "P-15815B" ink jetted on the upper flap of carton's side panel.

The problem was discovered when metal fragments were visually detected in the flour and pizza dough at a third-party crust production facility. The problem was traced back to a defective metal mesh screen at a third party flour mill. Some wire fragments are too small to be detected by standard industry metal detectors, so it may be possible for fragments to become lodged in a finished pizza. FSIS, FDA and the company have received no reports of injury associated with consumption of these products.

Consumers with questions about the recall should contact the Annie's Homegrown Pizza hotline at (888) 825-6720. Media with questions about the recall should contact Donald C. Cutler, of Kekst & Company acting on behalf of Annie's, at (415) 852-3903.

If you have one of these pizzas in your freezer, Annie's Homegrown Inc. suggests returning the pizza to the point of purchase for a full refund.