Keep turning the heap to speed things up. I have three bins. The first is fresh stuff which is just filled to the top. When its full I turn it into the second bin and leave it until the first is full again when everything gets moved again. The last bin has almost finished compost, I remove anything needing a bit longer back to the middle bin.

It means a bit more work but I can get usable compost for mulching the beds in about 3 months.

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Digger-07

"If you think you can, or think you can't, you're right" Henry Ford.