There is no school like the old school like the incredible workmanship for these cast iron teapots. Ja cast iron is designed for beauty as well as function. Our handcrafted works of art are manufactured using a rare sand casting process, following a centuries old Japanese tradition. Up to 40 individual intensive production steps turn each and every product into a one of a kind piece. Hand wash only, dry exterior well after washing. Make sure to wash well before first use.