Sorry to break it to you, but most likely, you're recycling wrong. \"Contamination\" is recycling industry lingo for anything that can't be recycled in a conventional single-stream recycling facility. So when you drop a bowling ball into the recycling bin in an act of wishful recycling, all you're doing is temporarily delaying its trip to the landfill. To save time and money, workers in the Waste Management recycling facility will search out and throw away anything contaminated with food or liquid. Broken glass isn't recyclable, because the machines can't sort the small pieces by color (plus it's a danger to recycling facility workers).