NOVELTY - A system comprises a mixture of organic inputs which is conveyed through an array of mesophilic and thermophilic digestion vessels following a sequence designed to optimize the digestion of each component of the mixture to produce a fertilizer product in liquid, mal-odor and pathogen free, and shelf stable form.    USE - For producing a fertilizer (claimed).    ADVANTAGE - The system provides fertilizer product in liquid, mal-odor and pathogen free, and shelf stable form; and produces fertilizer industrially.    DETAILED DESCRIPTION - A system for producing a fertilizer by a progressive digestion process, comprises a first tank (10) for receiving a mixture of organic inputs; a second tank (12) with 1.25-inch thick insulation foam receiving the mixture from the first tank for performing primary mesophilic digestion of the mixture; a vessel (14) receiving the mixture from the second tank for performing secondary mesophilic digestion of the mixture; a third tank (16) with greater than 3.5-inch thick insulation foam receiving the mixture from the vessel for thermophilic digestion of the mixture; a centrifuge receiving the mixture from the third tank; and fluid connector for filtering the mixture. The first tank includes chopper pump (10a) for re-circulating and chopping the mixture. The second tank comprises re-circulating pump (12b) for re-circulating the mixture; a device (d1) for monitoring a mixture temperature during mesophilic digestion; at least one device (d2) for monitoring an additional physical parameter of the mixture during mesophilic digestion; and controller (c1) for controlling the re-circulating pump. The controller (c1) is communicating with the re-circulating pump, and the device (d1) and (d2), within the second tank. The vessel comprises 2 inch thick insulation foam; device for monitoring a mixture temperature during secondary mesophilic digestion of the mixture; and device for monitoring at least one additional physical parameter of the mixture during secondary mesophilic digestion. The third tank comprises re-circulating pump for re-circulating the mixture during thermophilic digestion; device (d3) for monitoring a mixture temperature during thermophilic digestion of the mixture; device (d4) for monitoring at least one additional physical parameter during thermophilic digestion of the mixture; and controller (c2) for controlling the re-circulating pump. The controller (c2) is communicating with the re-circulating pump, and the device (d3) and (d4), within the third tank. The fluid connector receives the mixture from the centrifuge and coupled to a storage tank which receives a resulting filtered mixture and includes a device for aerating the resulting filtered mixture to produce a fertilizer product in liquid, mal-odor and pathogen free and shelf stable form.    An INDEPENDENT CLAIM is included for a fertilizer product in liquid, mal-odor and pathogen free and shelf stable form, produced by a progressive digestion process involving:    (1) adding a starting mixture of organic input material into a first tank, re-circulating the mixture and adjusting pH value of the mixture to a predetermined pH value;    (2) transferring the mixture to a second tank for primary mesophilic digestion, where the mixture is re-circulated until fermentation begins as indicated by a temperature increase, during which step the mixture temperature and at least one other physical parameters of the mixture is monitored to determine when the mixture temperature has reached a first predetermined maximum value; and controlling the recirculation of the mixture to maintain the mixture temperature at the first predetermined maximum value for a predetermined period of time;    (3) transferring the resultant mixture into a vessel for secondary mesophilic digestion, where the mixture temperature and at least one other physical parameters of the mixture to monitor the fermentation process until the mixture temperature reaches a second predetermined maximum value;    (4) transferring the mixture into a third tank for thermophilic digestion, where the mixture is re-circulated and the mixture temperature and at least one additional physical parameter is monitored to monitor the fermentation process until the mixture temperature reaches a third predetermined maximum value, and the mixture temperature is maintained at the third predetermined maximum value for a predetermined period of time by controlling the step of re-circulating the mixture;    (5) centrifugation of the mixture; and    (6) filtering the mixture and storing a resulting filtered material into a storage means comprising aerating the stored material during a predetermined period of time for a resulting fertilizer product in liquid, mal-odor free and shelf stable form.    DESCRIPTION OF DRAWING(S) - The figure shows systematic illustration of a system.    Receiving, blending and adjustments tank (10)    Re-circulating chopper pump (10a)    Primary mesophilic digestion tank (12)    Re-circulating pump (12b)    Secondary mesophilic digestion tank (14)    Thermophilic digestion tank. (16)