Various soy-based food products made by Chen Xiaomai, Liu Lingling, and Chi Deng's wife. Tofu skin sells at 100 Wen per Jin, tofu puffs at 30 Wen, and frozen tofu at 10 Wen per Jin. Good beans cost 5 Wen per Jin and can make over three Jin of tofu or roughly four Jin of frozen tofu. Madam Zheng agreed to buy them and asked them to keep making more.