NOVELTY - An in-vessel composting apparatus comprises first, second and final cylindrical chamber attached one to the next along the cylindrical axis to form rotatable horizontal drum; conveyor belt to feed the food waste into moisture control unit; input chute to receive the food waste from the belt; shredder to reduce the food waste passed through the input chute into smaller particles; auger to convey the food waste from the shredder into the drum; sensor (330) to detect jam condition in the chute; ram to clear the jam condition from the chute; and motor to rotate the horizontal drum.    USE - As an in-vessel composting apparatus for continuous processing of food waste into bulk composting material (claimed).    ADVANTAGE - The in-vessel composting apparatus is simple to operate, reliable, and energy efficient; reduces the volume and weight of the input materials; and produces a more consistent, higher quality, nutrient rich, end product.    DETAILED DESCRIPTION - An in-vessel composting apparatus for continuous processing of food waste into bulk composting material comprises a first, second and final cylindrical chamber attached one to the next along the cylindrical axis to form a rotatable horizontal drum, where each of the chambers has an axial input port and an axial output port on opposing faces of the cylinder and which align from one the chamber to the next; a conveyor belt to feed the food waste into a moisture control unit, where the moisture control unit compresses excess moisture from the food waste for storage in a holding tank; an input chute to receive the food waste from the conveyor belt after passing through the moisture control unit; a shredder to reduce the food waste passed through the input chute into smaller particles having diameters of 3/32 to 3/16 inches; an auger to convey the food waste from the shredder into the horizontal drum; a sensor (330) to detect a jam condition in the input chute; a ram to clear the jam condition from the input chute in response to the detected jam condition; and a motor to rotate the horizontal drum. An INDEPENDENT CLAIM is included for continuous process for in-vessel composting of food waste into bulk composting material involving compressing excess moisture from the food waste; storing the excess moisture; shredding the food waste into particles having a diameter of approximately 3/32 to 3/16 inches; inserting the food waste into a first chamber of a rotatable drum comprising at least three chambers serially connected by axial ports and having unit for gradual advancement of the food waste through the chambers while composting, such that a bulk composting material is deposited in the final chamber of the three chambers; and introducing a portion of the stored excess moisture into the final chamber of the chambers.    DESCRIPTION OF DRAWING(S) - The figure shows a side elevation view of the in-vessel composting apparatus.    Base frame (10)    Adjustable legs (12)    Drum supports (14)    Drum support rollers (16)    Motorized drum drive system (18)    In-feed section (100)    Drum section (200)    Sensor (330)