《周礼·冬官考工记·筑氏&玉人》
钟氏染羽毛，把丹砂和丹秫一起在水中浸渍三个月，而后用火蒸，再用蒸丹秫的水浇丹秫并再蒸，而后就可以用蒸丹秫的水染羽了。
钟氏染羽，以朱湛、丹秫，三月而炽之，淳而渍之。
The Zhong clan dyes feathers by soaking cinnabar and red malt together in water for three months. Then, they steam it, pour the water from the steamed red malt onto the red malt, and steam it again. Afterwards, the feathers can be dyed with the water from the steamed red malt.