[PROBLEMS] A high-calorie fermentation such as dry feed, fuel or primary fermentation compost by fermenting and drying organic waste with a high water content using aerobic thermophilic bacteria without using water-adjusting auxiliary materials such as sawdust and rice husks. Provide technology for manufacturing products. A method for producing a high-calorie fermented product from an organic waste by aerobic fermentation, in which an aerobic thermophilic bacterium and organic waste are introduced into a substantially dry fermentation drying tank, and the organic waste is disposed. A step of fermenting the product under aerobic conditions, a step of supplying oxygen by aerating warm air to the fermentation drying tank during the fermentation, and a part of the exhaust gas exhausted by the aeration. Supplying oxygen by circulating through the drying tank and supplying exhaust heat again into the fermentation drying tank； releasing the exhaust discharged by the ventilation into the atmosphere； and It solves by the manufacturing method of a high-calorie fermented product which has the process of complete finishing fermentation before fermenting completely and obtaining a fermented dried material. [Selection] Figure 1【課題】高含水率の有機性廃棄物を大鋸屑やもみ殻等の水分調整用副資材を用いずに好気性高温菌により発酵乾燥させて、乾燥飼料、燃料又は一次発酵堆肥等の高カロリー発酵物を製造する技術を提供する。【解決手段】好気発酵により有機性廃棄物から高カロリー発酵物を製造する方法であって、ほぼ密閉可能な発酵乾燥槽に好気性高温菌と有機性廃棄物を投入し、該有機性廃棄物を好気条件下で発酵を行う工程と、該発酵中に、該発酵乾燥槽に温風を通気して酸素を供給する工程と、該通気により排出された排気の一部を再び該発酵乾燥槽に通気循環させることにより酸素を供給すると共に排熱を再び該発酵乾燥槽内に供給する工程と、該通気により排出された排気を大気中に放出する工程と、該有機性廃棄物が完全に発酵する前に発酵を終了し、発酵乾燥物を得る工程と、を有する、高カロリー発酵物の製造方法により解決する。【選択図】図１
