Chalmers develops biodegradable architectural material from baker's yeast

At Chalmers University of Technology in Gothenburg, scientists have developed an architectural material that is entirely bio-based, utilizing baker's yeast, cellulose fibers, alginate from algae, plant-derived glycerol, and water. This hydrogel is 3D printed at ambient temperature into various structures such as screens, partitions, and wall panels, achieving a zero-waste process without fossil fuel inputs and incorporating an end-of-life plan. The findings, published in early 2026 in Frontiers of Architectural Research, mark the first instance of yeast being used as structural biomass instead of merely as a fermenting agent. Led by Professor Malgorzata Zboinska, with doctoral student Yagmur Bektas as co-author, the research team also includes members from Aalto University in Finland. Current prototypes include room dividers and wall systems, with further studies required on fire safety and structural integrity.