Almost 7700 cases of Kraft American Singles Cheese is being recalled because of an ingredient that was stored improperly by a supplier. The cheese may spoil prematurely and could cause a food borne illness. The packages are marked with "best when used by" dates of February 20, 2015 and Feb 21, 2015. If you have one of these packages in your fridge, you can return it to the store or call Kraft at 1-800-396-5512.