AgriProtein Technologies has developed a fly factory in Stellenbosch, SOuth Africa that transforms blood, guts, manure and discarded food into animal feed.
The flies are trained to lay eggs in one place by creating their ideal conditions in human grade food. The eggs are then taken out and put into the waste. At the end of 72 hours, one kilo of eggs turns into about 380 kilos of larvae. The larvae are then dried, reducing the weight by about 70%. A large scale plant produces about 28.5 tonnes of dried protein per day.
Different species of flies are used to deal with different waste blends.