When Fu Chen'an went to the kitchen, he saw his wife already lit the stove and was pouring the pig blood into a big iron pot. Seeing this, he walked over and took the ladle from her hand. "Let me do it," he said.
Yao Zhi didn't refuse and went to get a long wooden spatula. As the pot heated up, she started stirring the blood and scraping the bottom to prevent charring.
After the blood was poured in, Fu Chen'an took the spatula and continued stirring while Yao Zhi cleaned the water vat used to store the blood. Then she went to get a piece of clean fabric for later use.
Fu Chen'an stirred for a long time until the blood coagulated and turned into a thick sludge. Seeing this, Yao Zhi removed the firewood from the stove and said, "Husband, it's ready."
They let the blood cool down a little before she used the fabric to strain the cooked coagulum and remove the excess moisture. Afterward, she spread the cooked coagulum on the bamboo tray and placed it on the bamboo shelves to sun-dry.
