BERKELEY -- Annie's initiated a voluntary recall Tuesday of Annie's Homegrown Frozen Pizza due to possible fragments of metal caused by a faulty screen at a flour mill, a revelation that caused the company's shares to nose-dive in after-hours trades.
The affected pizza products are distributed at grocery, mass and natural food stores throughout the United States, the natural and organic foods company said. Berkeley-based Annie's said the fragments consist of flexible metal mesh.
The company's shares plunged 11 percent in the extended trading session.
All varieties of Annie's Rising Crust Frozen Pizza that have a "best by" date including or between Jan. 9, 2013, and Sept. 14, 2013, are affected, the company
The Rising Crust Frozen Pizza represented Annie's first foray into the pizza sector and is one of the company's newest products.
Fragments of flexible metal mesh were found in the flour and pizza dough. All Annie's manufacturers have comprehensive metal control programs that include magnets and metal-detection devices.
"While no metal has been found in Annie's finished product, as a precaution, Annie's initiated this voluntary recall," Annie's said.
Pieces of the fine wire were too small to be detected and could have found their way into the finished product, the company announced.
"There have been no consumer complaints, illnesses or injuries reported to date," Annie's said.