TheBreadCell project’s aim is to reduce the consequences of climate change, microplastic pollution and raw material shortages is to convert our economic system. We need to replace fossil-based resources by renewable ones, replace persistent materials by biodegradables while developing and employing environmentally friendly processing technologies to create safe products with minimum impact on the environment. A real impact on economy, society and ecology is only generated if the materials, processes, and products to be replaced are in large scale. In BreadCell, we develop a radically new technology to produce porous lightweight low-density materials which are currently used in large-scale industries and mainly consist of synthetic non-degradable polymers. BreadCell technology comprises a foaming process to create products relying on existing and new raw materials from pulping (cellulose, xylan), and to convert them to high-value, lightweight, energy-absorbing and load-transferring composites such as in sports and safety components of cars. The whole process chain will be guided by safe-by-design principles to ensure the production of sustainable and inherently safe products.