The Johnson-Su bioreactor is a passive, no-turn composting system developed by David & Hui-Chun Johnson that creates a biologically rich, fungal-dominant compost. It uses a cylindrical structure made of materials like concrete reinforcing mesh and landscape fabric, which is built around a central core to ensure air circulation. This method is aerobic, meaning it doesn't require turning, and produces a high-quality compost without odors or flies. https://youtu.be/DGk04nxuYWA?si=_HpN1SM-81PoKr3i&t=507