Practice: Wash buckwheat, coix seed, black rice, Gordon Euryale seed, brown rice, red beans and wheat kernels, then soak them in clear water for two hours, shell longan, and wash red dates and rice for later use; Pour the above raw materials into a pressure cooker, add a proper amount of water, cover the pressure valve, turn off the fire after the gas is exhausted, and then turn off the fire after the gas is exhausted. Just spray it three times.