General Recycling Information: These items include cups, plates, utensils, etc. made of corn, potato or other material that is designed to be compostable or biodegradable. This material cannot be placed in the recycling binâ€”even though it may have a #7 recycling symbol on it. These items may be placed in a compost pile, although some of this kind of material may take a long time to degrade. Do not place in yard waste piles.