The whole process of papermaking in Cai Lun (text)

1. Take bamboo paper as an example. It is pointed out in Tiangong Kaiwu that bamboo should be cut before and after awn seeds, and the length should be cut off by five or seven feet.

2. Soak in the pool water for one hundred days.

3. After processing and cleaning, remove the rough shell and green husk.

3. Wrap the pulp with good lime juice, put it in a yellow bucket for eight days and nights, rest for one day, take out the bamboo material, rinse it with clear water, pulp it with wood ash (plant ash water), cook it in a kettle, and water it with grey water. This will naturally stink for more than ten days.

4. Take it out and put it in a mortar, pound it into a mud surface, and then make pulp and paper. These records are basically the same as the process of making bamboo paper by folk methods later.