Bi Fang added the brain matter to the mixture and then gently stirred it with a small twig, allowing the brain matter to fully integrate with the water before placing it directly into the fire to heat.
"Heating allows the raw hide to fully absorb the brain matter. If necessary, you can also immerse the animal hide directly in this mixture, but we don't have a container to do that with."
[Wow, can you really do that?]
[An old craftsman here, suggest applying for Intangible Cultural Heritage.]
[Won't this burn through...]
[The person above, please redo middle school physics.]
After heating it up a bit, Bi Fang smeared the mixture of brain matter and water onto the rabbit hide. Once it was fully absorbed, he fashioned the animal hide into a pouch shape and tied it to a branch, continuing to smoke it over the fire.