Using Iouseki stones and Binchotan charcoal, the Charcoal Water Pitcher creates filtered, mineral-rich water. The stones come from the mountains in Kanazawa, the capital city of Ishikawa Prefecture, on the Sea of Japan coast. The charcoal is specially prepared for potable water use, and also works as a deodorizer to create odor-free water. In place of filters that need monthly replacement and add to landfill, Iouseki stones and Binchotan charcoal last up to six months (depending on use). In addition to being an eco-friendly solution, this elegant Water Pitcher can go from fridge to table, rather than having to pour the water into a suitable serving vessel. The Water Pitcher comes with one set of Purifying Sticks and Stones; additional sets can be purchased separately.