How it works
Goterra farms Black Soldier Fly, Hermetia Illucens (BSF). BSF are a naturalised species of fly found naturally all across Australia. The fly lay eggs, these then eggs hatch into larvae which commence eating rapidly for 20 days. At 20 days the larvae begin to turn into pupae to become flies again. As they eat our larvae create manure, called frass, similar to worm castings, frass is a highly nutritious soil conditioner.
Some important things to note about this species of fly:
BSF don’t eat as a fly, which is why most Australians have never seen them. This means they are non-vector for human disease as this fly cannot spread disease by feeding on multiple food sources.
BSF larvae eat aerobically, constantly turning and aerating the food waste as they consume, which in turn makes it difficult for pathogens, and bacterias to live in the food waste.
BSF are a tropical species and because they do not feed as a fly they are considered a non-pest species and are unable to thrive outside of the artificial conditions we’ve made for them.
BSF consume multiple times their body weight in food waste each day. This means Goterra’s process is daily, with wastes converted to insect protein and insect frass every 24 hours.
Our process allows the following non food items:
Tooth picks, recyclable coffee cups, wood chopsticks and compostable cutlery.
We work with our clients to help manage contamination challenges, but there are some contaminants that regularly make it through like: fruit stickers, elastic bands, tea bag strings and bottle caps. These cannot be processed, but are easily removed at the end of the feeding cycle.
Goterra currently accepts 140 and 240L wheelie bins and has a commercial grade macerator onsite for waste preparation.
Our clients are: Government, Councils, Hotels, Hospitals, Restaurants and households.
Closed loop System
Throughout the course of our process we harvest our larvae and frass to turn them into valuable agricultural commodities. That means that wastes gathered from the city will have a meaningful impact as protein or soil nutrients to agricultural communities. Our system creates opportunity to generate regional capacity and industry, where wastes are managed within 25km of origin and offtake is returned to the regions supply chains.
We believe this system creates value where previously there was little, but more importantly improves and empowers regional communities to manage wastes and create feed security.