This is a rapid bio digestion process where the ideal conditions for the rapid growth and colonization of bacteria are created and maintained. This facilitates the expedient destruction and breakdown of organic materials, giving off heat as part of the biological reaction.

This process is considered aerobic because of its dependency on oxygen.  As oxygen using bacteria feed on organic matter, the nitrogen, phosphorus, some of the carbon, and other required nutrients becomes part of their component make-up.  Carbon also serves as a source of energy and when it is burned, carbon dioxide is released.   Because of the dual role of carbon, a much larger ratio of carbon is needed when compared to nitrogen.  The burning of the carbon is what generates heat.

There are many different kinds of bacteria at work in a composting mass. Each type needs specific conditions and right kind of organic material. Some bacteria can even decompose organic material at temperatures below freezing. These are called "psychrophilic" bacteria and although they work best at around 55°F, they continue to work down to 0°F. As they work, they give off small amounts of heat. If conditions are right, this heat will be enough to set the stage for the next group of bacteria, the "mesophilic", or middle range temperature bacteria.

Mesophilic bacteria thrive from 70°F to 90°F, but just survive at temperatures above and below (40°F to 70°F, and 90°F to 110°F). In many backyard compost piles, these mid range bacteria do most of the work. However, if conditions are right they produce enough heat to activate the "thermophilic", or heat loving bacteria. Thermophilic bacteria work fast. Their optimum temperature range is from 104°F to 160°F.

This natural heat further encourages the rapid growth of more thermophilic bacteria, until all of the original organic material is digested and broken-down into a stabilized and homogenized nutrient rich soil product.

During an aerobic composting process, the combination of time and high temperatures destroy pathogenic bacteria, protozoa (microscopic one celled animals) and weed seeds. 

For this process to work efficiently, it is important to maintain an environment that; is not too hot or cool, contains ample moisture, contains a relatively consistent particle size and is properly maintained for ample oxygen flow.  

Aerobic composting is capable of decomposing 100% of biodegradable waste and therefore can stand alone as complete sustainable waste management solutions.