Making this required slow heating until all the moisture inside was gone and the liquid became thick, then pouring it into molds to dry for a few days.
Tong Sanlang was in charge of heating, while Qiao Xiaomai was responsible for making dinner. After dinner, the two stayed in the small kitchen until midnight before returning to their rooms to rest.
Before, Tong Sanlang had already done research in the manor. The proportion of pork to lye was simply one to nine or two to eight or three to seven. Eliminating the previously unsuccessful ratios and paying attention to small details during the heating process, it took them just a couple of days to successfully produce a pot of soap.
They poured the thick fluid from the pot into wooden molds, let it dry for three to five days, and it turned into a hard solid. Using a knife, they cut it into palm-sized squares and tried washing their hands and clothes with water.