We adhere to ISO 18604, an internationally recognised and verifiable ISO standard against which we measure the environmental performance of our sustainable Kegs. ISO 18604 rejects ‘thermal recycling’ as sustainable, and we agree. Till now, we stated KeyKegs were 100 % recyclable Kegs, but we want to be fully transparent, and we reject greenwashing. We acknowledge one small part of each KeyKeg is difficult to recycle and is subject to ‘thermal recycling’. KeyKeg is therefore 86 % circular rather than 100 %, but we are working to increase this percentage.