"takesumi" is the japanese word for bamboocharcoal.
Uses for bamboo charcoal include:
1. purifying water
put some in a jug or water bottle and leave for a couple of hours to purify your water, drink and taste the difference.
2. deodorant and dehumidification
place in an area and smell the difference as the charcoal absorbs the impruities in the air.
3. keeps food fresh
place with fruit and vegetables to help preserve for longer