Transferring to Ohitsu. Developed from the ingredients with bamboo charcoal and cooking rice more delicious when you add it. Made of resin with Japanese bamboo charcoal powder and is microwave safe. By transferring to ohitsu, you can eat delicious with less unpleasant smell and discoloration than the heat cooker. Thick, solid product. The old world has been developed as a base that fits all electronics. It can be used in microwave heating, refrigeration, and dishwasher. Even if dropped, it is hard to crack and does not affect the taste of rice.