Cork is the bark of the cork oak tree (Quercus suber L). It is a 100% natural raw material, meaning 100% reusable and 100% recyclable, extracted from cork oaks without harming the environment and without damaging the trees.
Once processed, into stoppers for example, cork can re-enter the production process. The granules resulting from this process can be used as a huge variety of products, such as hot pads, yoga blocks, lamps or toys.
Chemical composition of cork
Cork is composed of:
• suberin (45%) – main component of the cell walls, responsible for the elasticity of the cork;
• lignin (27%) – insulating compound;
• polysaccharides (12%) – components of the cell walls that help define the texture of the cork;
• tannins (6%) – polyphenolic compounds responsible for the colour;
• seroids (5%) – hydrophobic compounds that guarantee the impermeability of the cork.