Compost activators range from chemical fertilizer to microorganisms that speed up the composting process. Although of questionable benefit, adding these when building the pile may help jump-start the composting process. Kits measure the pH of the finished compost. Hydrometers are metal probes that measure the pile's moisture level. A level of 60 percent is ideal for heating up the pile.
Sifters can remove rocks, large chunks of soil, or undecomposed debris from finished compost.
Sift the pile only if the compost will go into a potting mix or onto lawns. Chippers and shredders chop organic matter into pieces small enough to add to the pile. Generally, chopped materials decompose faster than larger pieces, so if you have lots of sunflower stalks, cornstalks, oak leaves, or tree branches, chip and shred them before adding them to the pile. You live and breathe compost, and will construct three beautifully designed and functional bins so you can move the compost from bin to bin instead of just turning it in a single one. You check the pile daily, turn it weekly, concoct special recipes of various kinds of organic matter, and may use special tools.