Why can't construction paper be recycled?

Construction paper often contains dyes, coatings, and other additives that can complicate the recycling process. These materials may not break down easily during recycling, leading to contamination of the recycled paper stream. Additionally, the fibers in construction paper are typically shorter than those in standard paper, making them less suitable for recycling into high-quality paper products. As a result, many recycling facilities do not accept construction paper.