Kishu Binchotan is known for the best quality charcoal for purifying water. Binchotan charcoal is activated through an extremely high burning temperature and rapid cooling process. Binchotan absorb chlorine and other chemicals from tap water while releasing natural minerals into it. Binchotan has an alkaline effect (PH Level 8 -8.5), it soften and improve the overall taste of water. Prior to the first time use, rise Binchotan with water and boil it for 10 minutes to refresh, let it dry then place in your water pitcher. Bichotan can be re-use it up to around 3 months. It can be recycled it by breaking it small pieces place into your plant soil for creating micro water and air cavities in the soil. Made in Kishu region in Japan.