A key principle of recycling is that you get out what you put in. Quality in, quality out is a mantra we often hear from reprocessors. It’s a challenge for a paper or card-recycling mill to make it happen. Figures vary from country to country, but typically 70-75 per cent of paper and card is recycled in European countries and around 65 per cent in the United States. As the various grades of paper-based products make their way on the recycling journey, these are often mixed with other materials. This is true even where there are specialised containers for collecting paper and cardboard.