PURPOSE: A natural bio is provided to suppress bacteria breeding and to completely deodorize.CONSTITUTION: A natural bio is prepared by washing and uniformly pulverizing ingredients a step of fermenting the ingredients in a fermentation tank at 20-25 deg. C. for 48 hours a step of secondarily fermenting the ingredients at 4 deg. C. for 48 hours a step of extracting fermented liquid and preparing a crude liquid a step of mixing the crude liquid and water and a step of fermenting the diluted liquid at 24-48 hours. The ingredients contains ~10% of apple, ~10% of pineapple, ~5% of persimmon, ~5% of strawberry, ~5% of banana, ~5% of citrus, ~5% of orange, ~5% of starch syrup, ~10% of sugar, and ~5% of radish.COPYRIGHT KIPO 2013[Reference numerals] (1) Purchasing and washing necessary ingredients (2) Uniformly pulverizing(more than or equal to 80%) (4) Extracting crude liquid using an extractor (6) Re-fermenting diluted liquid for 24-48 hours (AA) Pottery product (BB) Stainless steel fermenting bath (CC) Fermenting in the fermenting bath for 48 hours at 20-25 (DD) Recognizing the completion of fermentation by generated bubbles, scent, and changed temperature, and secondarily fermenting for 48 hours by lowering the temperature to 4°C (EE) Extracted crude liquid (FF) 50 times water (GG) Diluting.