All About Recycled Paperboard Thank you for your interest in 100% recycled paperboard! We hope the following information answers your questions. If not, please feel free to contact us. What is 100% Recycled Paperboard and How Is It Made? Learn about the process that turns recovered paper into 100% recycled paperboard. The History of Papermaking From using rags to trees to recovered paper, papermaking has evolved over thousands of years. Papermaking in the U.S. Today For members of the Paper Recycling Coalition, recycling isn’t just a feel-good activity, it’s a core business principle. Learn more about today’s 100% recycled paperboard industry. Paper Recycling Terms Confused about contaminants, outthrows, and other paper terminology? Our glossary will clear it up for you. Paper Recycling Symbols Here’s a quick guide to what those recycling symbols mean.