Apparatus - a bioreactor and associated control systems uses "continuous flow pasteurisation technology" to transform organic waste into usable and beneficial products via zoned stabilisation processes, the bioreactor stabilisation processes utilise the natural microbial action of microrganisms to produce stable products to specification formulation, the bioreactor and its control systems, can accurately control aerobic, anoxic, thermophilic, mesophilic, fermentation, maturation, anerobic and vermiculture processes by managing the levels of moisture, oxygen, temperature, special additives, etc. to accelerate the process to produce high quality stable organic compounds and products, the bioreactor is managed by the use of respirometer management systems and maturity testing for all aspects of the process including: moisture, humidity, energy management, odour control, enzyme activation and oxygen, carbondioxide off gases, bioreactor process formulation is related to substrate respiration rate, energy management, etc. the bioreactor apparatus is a system which consists of a vessel and various management control systems, the management systems include the control of feed, process, odour, discharge, etc.