Cartons Are Not Recyclable Email Have you been tossing milk and juice cartons in with your other recycling? They’re actually not recyclable here. Because they are made out of both paper and plastic, and sometimes aluminum as well, they are more difficult to process. Facilities that do this kind of work are still limited. What are cartons? Cartons are paperboard lined with a thin layer of plastic, such as juice boxes or Tetrapak. Cartons include containers for: Milk, milk alternatives, juice, broth, soup, cream, egg substitutes, wine and anything marked as Tetrapak.