Sara Lee Corporation is recalling several brands of bread that might contain pieces of metal.

The U.S. food and Drug Administration says more than two dozen kinds of whole wheat bread are being recalled because of problems with a whole-wheat flour sifter screen. The brands include EarthGrains and Sara Lee Delightful.

The bread, which was sold in Missouri and seven other states at several stores, including Wal-Mart, has a "best if purchased by" date between July 25th and August 7th. It can be returned to the store at which it was bought for a refund.