Free, open-source community-scale composter design
This document outlines how the Compost for Good team designed and built a commercial-scale, rotating drum composter, capable of processing all of the unsorted food waste. This composter was built for approximately $15,000 in material cost. Similar-sized composters purchased on the open market range anywhere from $40,000 to $150,000. Our hope is that this document provides enough detail so that others may build their own composter, save money, keep food waste out of landfills, and generate a valuable product for use or sale. We are quite sure that further modifications can be made to reduce the material and labor costs involved in construction.
Download the design guide here.