Popsugar Living Recycling 17 Things You Should Never Recycle 17 Things You Thought Were Recyclable That Actually Aren't 11 February 2020 by Jenna Wirth View On One Page Photo 8 of 16 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 Brightly Dyed Paper Any type of paper that's heavily dyed typically is heat-treated, which contaminates the paper and makes it nonrecyclable. Previous Next Start Slideshow RecyclingGreen LivingFactsEnvironment