Posted: 02/26/2013 - The Colorado Department of Public Health and Environment today announced a voluntary recall by King Arthur Flour of Norwich, Vt. of a limited number of bags of flour due to the possible presence of small (7- to 9-mm) blue polyurethane balls that are used in the sifting process. The balls have a smooth surface with no sharp edges and are made from food grade material. Due to their bright blue color and size (about half the diameter of a dime), they are easily seen in the flour. Only 5-pound bags of King Arthur Unbleached All-Purpose Flour and King Arthur Unbleached Bread Flour that have Best Used By Dates and Lot Codes noted below are involved. This information is printed on the side of the bag beneath the nutrition panel. If the Best Used By Date and Lot Code number are printed on the top of the bag, then the product is not affected. The following two King Arthur Flour products are included in the voluntary recall: King Arthur Unbleached All-Purpose Flour, 5-pound bag, UPC 0-71012-01050-9. For more information, call the King Arthur Flour Consumer Hotline at 866-797-9178, Monday-Friday, 9 a.m. to 6 p.m. Eastern Standard Time or visit www.kingarthurflour.com/voluntaryrecall.