Contrary to what the name suggests, grass paper is not made exclusively from grass. Grass fibers do have all the properties necessary for the production of paper. However, they are not as stable as wood fibers. For this reason, grass and wood fibers are mixed in paper production. Depending on the intended use, up to 50% of wood fibers can be replaced by grass fibers. Instead of “fresh” wood fibers, waste paper can also be reused.
Grass paper, like conventional paper, must meet certain standards. After thorough testing, various official bodies and certain institutes award certificates that guarantee the paper special properties. For example, a seal of approval based on the criteria of the FDA (Food and Drug Administration, USA) confirms that the paper complies with the regulations in force there for products that come into contact with food or medicines.
The FSC (Forest Stewardship Council) seal confirms that the wood fiber content of the grass paper originates from responsible forestry. The ISEGA test seal, on the other hand, can stand for various properties of a product. In the case of grass paper, the certificate usually means that its contact with food is harmless.