3 Jin. According to the inquiry experts, the processing method of Eucommia ulmoides Oliv. with salt and appropriate amount of boiling water (each Eucommia ulmoides Oliv. 100 kg, with 3 kg of salt). Take Eucommia ulmoides blocks or shreds and salt water, mix them thoroughly and absorb them, then put them in a pot, fry them with slow fire until they are slightly scorched, and take them out to dry.