Coconut shell activated charcoal is made from coconut husk. It is a vapor-activated material, so it does not contain chemical agents that can contaminate or react with the medium where it is used. HS Code : 44029010 Burning Time : 2 Hours Ash Color : White Ash Content : Max 3% /pcs Calory : Min 7.000 kal Moisture : Max 5% Size : 22x22x22; 25x25x25 ; 26x26x26