The most sustainable packaging is the one not created – clear hierarchy:
- Best option: Reusable deposit systems (e.g., RECUP, Vytal).
- Good option: Recyclable mono-materials such as paper/cardboard with bio-based lining or pure polypropylene (PP) without black pigments.
- Conditionally viable: Industrially compostable materials (bagasse, PLA) only if guaranteed access to an industrial compost facility exists – otherwise greenwashing.