How to make coconut vinegar

I.  Ingredients

Coconut water                             8 cups
Sugar                                          1 cup
Fleichman's yeast                         1/2 tsp
Ordinary vinegar from                   1 1/2 cups
   nipa or coconut sap

II.  Procedure

  Strain coconut water thru muslin cloth.  Add 1 cup of refined sugar to eight cups of strained coconut water.  Boil for 5 minutes.  Cool in sterile glass containers and cover with paper to avoid contamination.  Add 1/2 tsp of Fleicman's yeast and allow to ferment (around 1 week).

Siphon the clear solution into wide-mouthed sterilized glass jars.  Inoculate with 1 1/2 cups of ordinary vinegar from nipa or coconut sap which is available in the market.  A thin film will grow on the surface which should be a good sign.  Allow to ferment at room temperature.  Vinegar fermentation takes 2 to 3 months.

Siphon the vinegar and pasteurize at 60 deg C for 10 minutes.  Age in barrels.