Green Brick

Green Brick is an Australian cleantech startup transforming spent coffee grounds into structurally certified, low-carbon construction bricks. Partnering with Swinburne University and Hampton Capital, our innovation replaces high-emission clay bricks with a sustainable, circular alternative that cures at just 200°C using a natural alkali activator—drastically reducing electricity use, cutting energy costs, and locking in carbon that would otherwise be released.

TECHNOLOGY:
• Coffee waste repurposing: Replaces virgin clay with coffee grounds, creating a valuable second life for food waste.
• Low-temperature curing: Bricks are cured at 200°C (not fired at >1000°C), reducing CO₂ emissions by ~70%.
• Digital platform: Automates carbon offset tracking and audit readiness, allowing users to quantify emissions savings and unlock carbon credit revenue.
• Modular R&D model: Partners with universities to rapidly prototype and test sustainable brick formulations, accelerating commercial deployment.

WHY THIS VENTURE MATTERS
• Climate-positive construction: Cuts Scope 1, 2, and 3 emissions across the supply chain, helping material producers meet net-zero targets.
• Circular waste management: Exploring partnerships with cafe chains to reduce landfill pressure and build a national feedstock network.
• Regulatory readiness: Aligns with Australia’s incoming green bin mandates, easing compliance and reducing operational burdens on small businesses.
• Scalable and verifiable: Our solution integrates material science, sustainable sourcing, and impact tracking—making it uniquely positioned to reshape the future of low-carbon building.