Tuesday, July 28, 2009

Composting prior to Vermicomposting

There has been much curiosity as to why we compost our feedstock material (dairy manure) prior to vermicomposting. On the surface, this may seem slightly redundant, but there are many key issues which the process addresses. The controlled thermophilic composting (natural high heat) process we utilize completes three things for us:

1. It removes some of the potential for the material to heat up (compost) after being fed to the worm population (removal of energy). The last thing we want is to have the feedstock material start actively composting in the worm beds; thus making the living conditions undesirable or uninhabitable for the worm population (higher temps);

2. PFRP = a path to further reduce pathogens;

3. Weed seed destruction. Finished products should be weed seed free;

4. Produces a richer feed for the worms.


  1. Hi Im Glenn,
    Congratulation Thomas on your outstanding effort, wormery and industry contributions.
    I was wondering is it possible to collect methane from your composting stage, this free resource could them run simple gas heaters when needed, or if there was enough it could put power back into the grid giving you another income stream.
    I live in Thailand and am looking around at the huge green waste, piggery wastes here. I am very keen to start a commercial worm venture here.
    Kind regards,
    Glenn Cooper

  2. We are trying to use finished compost as feedstock for our worms. What benefits or drawbacks do you see with this??

  3. Good morning,
    We built a new dairy facility in 2008 with an attached facility to compost the dairy manure. Over the past 2 winters we have not had much success in composting. When you add organic material to the seperated dairy manure, has it been chopped or broken into smaller pieces?