One of the most common items we recycle on a day basis, paper, can be a tricky recyclable at times. Because paper is made using different recipes, including different types of fiber and chemical requirements, recycling yesterday’s newspaper, the old grocery list or last month’s issue of Vogue is not a simple as we would like it to be. According to the EPA, the challenge of paper recyclability can be broken down into five different paper grades, including:
- Old corrugated containers, also known as corrugated cardboard. Paper mills use these materials to make new recycled-content shipping boxes and recycled paperboard for product packaging like cereal boxes, shoeboxes and more.
- Mixed paper is a broader category, which includes discarded mail, telephone books, paperboard, magazines and catalogs. Paper mills use mixed paper to produce paperboard and tissue, as a secondary fiber in the production of new paper or as a raw material in nonpaper products such as gypsum wallboard, chipboard roofing felt, cellulose insulation and molded pulp products such as egg cartons.
- Old newspapers are used by mills to make new recycled-content newsprint and in recycled paperboard and tissue with other paper grades.
- High-grade de-inked paper is made of high-grade paper such as letterhead, copier paper, envelopes and printer and convertor scrap that has gone through the printing process. It must first be de-inked before it can be reprocessed into high-grade paper products such as printing and writing papers or tissue.
- Pulp substitutes are a high-grade paper, often sourced as shavings and clippings from converting operations at paper mills and print shops. Mills can use pulp substitutes in place of virgin materials to make high-grade paper products.