beautiful collaboration between duynie, the compound company and granulous

Through a close collaboration between Duynie, GRANULOUS, and The Compound Company, three different biodegradable compounds have been manufactured as sustainable alternatives to fossil-based plastics.

Utilizing grain residues from brewery residual streams supplied by Duynie in this format is a pioneering step in circular material innovation. Through a close collaboration between Duynie, GRANULOUS, and The Compound Company, three different biodegradable compounds have been manufactured as sustainable alternatives to fossil-based plastics.

At the heart of this collaboration is the transformation of processed brewery grains into high-performance, biodegradable materials. Duynie provides the brewery co-products, GRANULOUS develops the material solutions and application concepts, and The Compound Company converts these formulations into industrial-grade compounds ready for manufacturing.

The result is a smart materials loop that turns an underutilized side stream into valuable raw material for sustainable products. It is a quiet but powerful example of circularity in action: less waste, less fossil plastic, and a more intelligent use of existing resources. The next time someone enjoys a cold beer, there is a sustainability story continuing in the background. Yesterday’s by-product becoming tomorrow’s progress.

These compounds are fully compatible with existing injection moulding machinery and moulds, enabling seamless adoption for manufacturers without the need for new production investments. The materials are bio-based and compostable under natural conditions, returning safely to the soil after use without leaving microplastics behind. This makes them particularly well suited for agricultural and other environmentally sensitive applications.

With mechanical properties close to those of virgin materials, the solutions are easy to integrate into existing product portfolios, creating immediate commercial value while supporting sustainability goals.

These materials demonstrates how strong collaboration across the supply chain. From side-stream sourcing to material development and industrial compounding, can make truly sustainable, scalable products possible.