Bai Xing had already brought over many pieces of cowhide and was quickly noting down everything Xue Ganggang said, using something similar to black charcoal on the cowhide.
Xue Ganggang naturally explained how to extract plant oil, and even drew on the ground the design of the pressing device, what to pay attention to in order to extract oil, and, once the oil was extracted, the best way to store it.
Bai Xing recorded everything onto "Cowhide Paper" without missing a single detail, even going so far as to copy the drawings Xue Ganggang made on the ground onto the cowhide paper.
Xue Ganggang was somewhat surprised by Bai Xing's copying skills and took a second look.
Xue Ganggang also demonstrated on the ground how to husk rice and how to construct the thresher, rice flour. If the rice flour was too complex to make, a simpler tool could be used: a pestle.
Bai Xing copied all of these onto the paper as well, planning to have the Beastmen in the tribe craft them accordingly.