Hartley's Potato Chips Salt & Vinegar 4.5 oz and 2.5 oz bags Hartley's Potato Chip Co., Inc, Lewistown, PA Ingredients: potatoes, vegetable shortening, salt, lactose, sodium diacetate, salt, malic acid, sodium citrate, with not more than 2% silicon dioxide and partially hydrogenated soybean and/or cottonseed oil. Class I - Dangerous Undeclared lactose (milk) in seasoning sub-ingredient used in the manufacturing of Hartley's Salt & Vinegar Potato Chips. Aug 20, 2013 Produce View Details →