1. Soak in clean water for a long time. When soaking, you can directly put the rattlesnake into clear water, let the water soak the rattlesnake, and change the water every ten hours. Rattlesnakes can be soaked for three or four days.
2, hot water immersion, at the beginning of immersion, it is best to use warm water of about 50 degrees and change the water every three hours. When it softens slowly, it can be soaked in hot water of about 90 degrees, and the rattlesnake will absorb and swell to soften, so that the rattlesnake inside can soak for two to three days.
3. Boil it directly, soak it in clear water for two to three hours in advance, take it out, clean it, put it in a pressure cooker, add the prepared broth and onion ginger, then cover the lid, heat it to boiling, and turn off the fire after the high pressure valve rises.