Following an independent study by PricewaterhouseCoopers, cork producer Amorim has confirmed that its Neutrocork bottle-stopper has a negative carbon footprint. Calculated using a life cycle approach, which considers all aspects of production (including emissions of input materials, total energy production, packaging materials, and transport), the Neutrocork has a positive carbon balance of -1.8g CO2e per stopper. It’s carbon sequestration score is -392g CO2e per stopper.