How can I speed up the rate of compost production in my compost bins?
The best compost is the compost that took its time. What you should do now is take a pitchfork and move the compost into one pile; all the stuff that’s close to getting done should be in one pile and the not-so-done stuff in another. You can probably turn five piles into two or three instead and help speed the process of decomposition. Compost needs air, water and a combination of green and brown stuff on a regular basis. It takes a few months to really get good, dark compost ready for the garden. But you can speed up the process with weekly attention: turn the pile, add moisture when needed, and poke holes into the compost so that air can go through.