As organisms decompose waste, they generate heat. Overheating results in drastic population fluctuations and possibly unpleasant odors, as the pile sterililzes itslf and microorganisms die. A thermometer is the only essential instrument for monitoring a composting operation. Temperature readings help determine the most appropriate time to turn the material. Turning the compost will cool the pile, and also break up any anaeriobic pockets, where oxygen is lacking.
Surface area is another important consideration in the composting process.
Here millions of microorganismms are working to break down an already partially decomposed leaf. Shredding yard waste before composing, increases surface area, in effect assisting this work of decomposition and reducing the time it takes to produce finished compost. Minor variations in most of these requirements of the compost process will not cause significant problems. The goal is to prokmote rapid composting without creating anaerobic conditions, which will result from either too much moisture, excess nitrogne, or inadequate aeration. All material is protected by Section 107 of the 1976 copyright law.