PAANO GAWING VINEGAR ANG TUBIG NG NIYOG? No sugar and yeast added

hOW TO MAKE A VINEGAR USING THE COCONUT WATER A COLD PROCESS NO NEED COOKING NO NEED TO PUT SUGAR AND NO NEED TO PUT YEAST JUST USED THE COMMERCIAL VINEGAR JUST BUY VINEGAR LIKE DATU PUTI OR SILVERSWAN VINEGAR