Hi,
BSFL is a great tool for composting organic material but results can vary.
As with any other type of base fertilizer, the quality of BSFL compost has to be understood from nutritional perspective.
High-quality compost is nutritionally balanced and good for plants if it is made from materials that are similar to a plant body, like grass, hay, wood chips, sawdust, or the manure of animals that eat a lot of grass and hay.
High-quality compost should also never contain antibiotics or vermicides.
The problem is that farmers usually feed BSF maggots meat, animal carcasses, spent grain, bran, poultry manure and kitchen waste that is mostly fruit and vegetable peels. Such food is far from resembling a plant body, so the compost is not balanced. A good quality base fertilizer should not contain more than 10% of such compost.
On the other hand, using BSFL compost should pose no issues as long as those maggots eat mostly wild grass and organic manure from grass-fed animals.
