As long as it is clean, both corrugated cardboard and paperboard can (and should) be recycled. Cardboard is a high-quality and durable material that makes it ideal for being recycled into paperboard, cardboard and other paper products. When recycling cardboard boxes, make sure they are empty, flat and free from water damage. Although made from cardboard, pizza boxes cannot be recycled.
Paperboard includes cereal and other food boxes. Before tossing boxes into your recycling bin, remove plastic liners and make sure the container is clean. If the paperboard has grease stains or other food contamination, it cannot be recycled.