The Watertree pod is made from 75% wood fibre sourced from responsibly-managed forests certified by the Forestry Stewardship Council (FSC). Watertree pod materials are sourced from renewable tree farms that soak up carbon dioxide from the air. Renewable packaging resources are NATURAL materials that GROW back causing MINIMAL harm to the environment. Our bio-caps are derived from sugarcane, a much lower carbon impact than conventional caps made from fossil-fuel derived plastics.