TECHNOLOGY FOCUS - ENVIRONMENT - Preferred Composter: The composter comprises insertion of mobile or fixed systems included in the aerated pipe for slowing down and turning of the material and to accelerate the composting process, where the systems has simple and fixed obstacles with inverted U-shape, more complex helical structures that are able to rotate or curve surfaces spoons-shape inclined inwards with the presence or absence of pocket in which the mature compost is previously put to accelerate the degradation process of the organic substance. The composter further comprises system for air regulation such as open flaps and aspirator, humidity control systems such as humidifiers and sprayers, systems for adjusting temperature such as steering jets of hot steam conveyed by the extractor fan of the user?s kitchen and electrical resistances, and monitoring system such as thermometers, hygrometers, and cameras. The composter comprises system that implements the step of bio-stabilization in the aerated pipe separate and independent for the various families at the various levels, while the phase of maturation is centralized in the same container situated at the duct base, optionally provided with turner which comprises systems with expulsion driven by crank mechanisms centralized or operated by the family member, where the materials partially mineralized in the various planes. The composter further comprises decentralized pipe with respect to the outer casing externally defined by grid or nonwoven fabric or breathable spongy tissue, fixed retarders and shakers, feed ducts, single duct along the entire height of the casing in which system commanded by the user or an automatic discharge system that use the weight of the material and discharges the composted material to the various floor so that it reaches the reservoir at the casing bottom. The composter further comprises lifting and mixing system for producing compostable from the various floors to the top of the last floor.