How to make activated coconut charcoal

1. Dry the coconut shell for forty eight hours to remove moisture from it (Sun Dry). 2. Subject to uncontrolled combustion using open air burning for three hours and allowed to cool for about 12hours. 3. Grind well to Ashes and sieved through a BS sieve (75 microns). 4. Put Ashes into a small bottle (20ml) 5. Add 10ml of Water and Shake well; wait 1-2hrs and it's ready to use.