Grocery retailer Price Chopper is recalling homogenized milk in half-gallon paper cartons because the milk may contain a non-hazardous cleaning solution. The recalled product bears the UPC code 4173513275 and a best-by date of Sept. 29. The cleaning solution was used to clean processing equipment and the retailer says it is not harmful to humans. Customers may return the products to Price Chopper for a full refund.