I'm in the process of making vermi extract. It is a different process then making a oxygenated tea from the worm casts. I put the castings into a tightly stitched burlap sack the I use my power washer to knock the microbes off into a barrel. Extract can stay alive for up to 18 months. The problem being is the water in my well has frozen solid so no water πππ
Anyway the joys of worm farming in Irelandπ€