Method for producing valuable materials containing sugar, organic acid and tar starting from sugar cane, banana stem, coconut, kenaf and paper and paper waste ONLY with water under two variables, temperature and residence time to control. The current issue is the reaction time is the imitation. This research limits reaction time to determine the optimum highest yield. Increasing the reaction time will increase the cost of manufacturing. This technology can convert major agriculture waste especially in our country (banana stem, coconut husk, sugarcane bagasse, kenaf and paper) to valuable materials using completely harmless water. Totally free toxic organic solvents. It is lower process cost, mild operating conditions and Environmental Sciences sustainability. Short period of extraction (5 min)