Persimmon cream cake is actually a very useful Chinese medicine, which can not only nourish the spleen but also moisten the lungs. Especially those with more persimmon cream can moisten the lungs.
Most fruits with high water content are cool, especially persimmons, which are filled with sticky juice, so they can nourish yin and moisten the lungs. It's easy to explain what the Hui people said that eating too much is easy to get angry, because persimmon itself enters the spleen and lungs, and if you eat too much, the power of human body's qi will increase. Think about it, if you plug the gap of external heat dissipation for a TV set, it's strange that it's not hot inside, corresponding to the human body, that is, the yang in the body can't get out through the lungs and pores, so it's inevitable to get angry, and it's strange not to get angry.
Another respondent said that Ejiao is actually the same thing. Ejiao, boiled donkey skin, can generally enter the lungs, increasing the cohesion and convergence of human skin, but a lot of waste heat generated in the body can't get out, and it will definitely get angry. So there is no need not to eat Ejiao.