Can You Compost Glossy/Plastic-Coated Paper?

No, you should avoid using glossy or plastic-coated paper in the compost pile. Plastic-coated paper products may produce plastic fragments that don’t degrade easily in a typical home compost pile. While it may only be a tiny amount, these paper products may also contain chemical contaminants that aren’t good to have in the resulting compost.

Keep in mind that we aren’t just thinking about paper. This also applies to plastic-coated paper products like milk and juice cartons. You can always recycle these paper materials if you aren’t fully sure of using them in a compost pile.

Reference: http://compost.css.cornell.edu/faq.html

Glossy Paper Material Compost