In a black iron (carbon steel or cast iron) wok, cover the base with heavy foil, shiny side up, to protect the finish. Add half the dry rice, mandarin peels, tea leaves and rock sugar. Arrange the steamer rack and tray on top (see video in post) or two steamer racks side-by-side. Lay as many larou strips as fit in the wok. Cover with wok lid and turn heat on to high. Start running the kitchen exhaust fan on high now, or you might set off an alarm. When the wok starts smoking (lift lid to confirm), turn the heat down to low and smoke for 5-6 minutes. Flip meat and replace lid, smoking for another 5-6 minutes.