The Salinas, Calif., company said Wednesday that its action comes after the Washington state Agriculture Department conducted a random test on a finished package of spinach.
No illnesses have been reported.
The bagged salad products include those with "best by" dates ranging from Oct. 18 to 21. They were marketed under the brand names Fresh Selections, HEB, Marketside and Taylor Farms.
The items were distributed in Arizona, California, Colorado, Florida, Kentucky, Missouri, New Mexico, New York, North Carolina, Oregon, South Carolina, Texas, Virginia, Washington and Puerto Rico and sold in various retail supermarkets.
Consumers can call 1-877-323-7374 for more information.