How To Build A Johnson - Su Bioreactor Composting System
Sat, 02 May
|Tairāwhiti Environment Centre
Jacopo Orazi (Radice Soil) will be guiding you step-by-step through the 'art' of making a Johnson-Su composting system.
Time & Location
02 May 2026, 9:00 am – 3:00 pm
Tairāwhiti Environment Centre, 386 Palmerston Road, Gisborne 4010, New Zealand
About the event
Soil expert Jacopo Orazi (Radice Soil), based in Tairāwhiti, will be in the māra for the day, guiding participants step-by-step through the art of creating a Johnson-Su composting system.
The Johnson-Su system is a low-tech, non-turned aerobic bioreactor that produces highly fungal-dominant, nutrient-rich compost over 9–12 months. It supports diverse microbial life essential for healthy soil, without creating odours or attracting pests.
This hands-on workshop is open to anyone passionate about improving soil structure and growing healthy kai.
The session runs from 9am–3pm, with the price including a delicious lunch of hot soup and sourdough.
Tickets Here