The Okadora Boil and Dry Compost system is capable of carrying out primary and secondary fermentation in a short time. This allows for the production of a mature product and avoids the generation of strong, hazardous smells, which typically occur during traditional fermentation processes. When treating sludge with a water content of 80% by the “Boil & Dry” system, the water content can be adjusted down to an even 40%. Subsequently, the secondary process of fermentation can be immediately commenced without causing any strong smells. Additionally, and most importantly, the time needed for fermentation is dramatically reduced from 60 to 70 days down to a period of 7 to 10 days.