Firing Schedule It takes a full three days and nights to fire the 13-chambered kiln. Teams work in shifts around the clock to feed the flames. Date: 15 May 2015 Copyright OIST (Okinawa Institute of Science and Technology Graduate University, 沖縄科学技術大学院大学). Creative Commons Attribution 4.0 International License (CC BY 4.0). Download full-resolution image Tags Arts and Culture Share on: