I found my home-made compost was coming out too chunky. It’s partly to do with using woodchip in the HotBin as a source of “brown” carbon-rich material to counter the “green” nitrogenous material. If I had some coarse sawdust, I would use that instead.
I’m sure there are examples of this, but I’ve not seen it done before. Sieving compost is, after all, a similar process. Sometimes people run a lawnmower over a pile of woodchip – that’s similar in principle too. But I thought I would try grinding it down.
I bought a small industrial apple juicer online and ran the compost through it. Checking all the time for worms, of which there were none. It came out really well. I would like it a bit finer – but it’s an improvement. At the end, I turned a jug of biochar into the mixture and set the end result to work. It’s supported the growth of my red cabbages really well.