Pyrex IGB Lab Special Instructions Landfill IGB LAB USERS ONLY: Place Pyrex glass and other glass materials into cardboard box labeled: Broken Glassware. Pyrex Goes in the Garbage Pyrex cannot be recycled because it melts at a higher temperature than other container glass. Wrap up Pyrex and throw it in the trash. Wrap Up Broken Pyrex Broken glass can physically injure sanitation workers and trash haulers. Wrap up the broken glass before disposing of it. Learn how to properly dispose of broken glass.