Donkey skins can be harvested all year round. Generally, the production season of Ejiao is from June 5438 to May of the following year. First, put the donkey skin in a container, soak it in water to make it soft, remove the donkey hair, chop it into small pieces, soak it in water to make it white, put it in boiling water, take it out when the skin curls, and then put it in a glue boiling pot for cooking. Boil, pour into a container, take out after the glue solidifies, cut into small pieces, and dry.
Extended data
The blood calcium concentration of people taking Ejiao increased slightly, but there was no significant change in coagulation time. The rabbit model of chronic nephritis was established by Vassili's improved method. After taking Ejiao for 2 weeks, the nitrogen balance was positive, while the control group was still negative.
Ejiao has the effects of enriching blood, nourishing yin, moistening lung and stopping bleeding. Indications: blood deficiency syndrome, bleeding syndrome, lung yin deficiency, dry cough, fever, insomnia, irritability, carbuncle of hands and feet.
Baidu encyclopedia-Ejiao