In this CFT bin, I use mainly kitchen scraps and occasionally horse manure and other garden waste. I don’t mind the bugs, they are part of the ecosystem. As for flies, they are controlled with various method combined:
- in period of the year where the boom, I would use some fly trap around the worm farming area.
- I also have a colony of black soldier fly larvae. They did out in winter and progressively come back when the weather warms up. As the colony is established, they actually lower the population of other types of flies including house flies by generating a pheromone which has a repelling effect on other fly species and by consuming all the food before the other flies’ eggs even hatch.
- I use a lot of dry shredded corrugated cardboard and coffee chaff (husk) under the food waste and also covering it in thick layer. This absorbs moisture, add bulkiness and hence allowing better ventilation which in turn reduces odours. Additionally it makes it difficult for fruit flies to access the food to lay their eggs.
In your system, if you can get a good C:N ratio and control moisture and air then you should be able to raise the heat and increase the Composting speed a little bit.