1. Wash the trotters and put them into the pot. Pour cold water into the pot, cover the pot and cook over medium heat.
2. Boil the water 1 min, and turn off the fire.
3. Wash away floating foam and impurities for later use. Shred ginger slices and cut dried peppers into sections.
4. Put pig's trotters, ginger and dried peppers into a pressure cooker, add a little salt and pour in yellow wine.
Add water until it is flush with pig's trotters, cover the pot, and autoclave for 30 minutes.
5, out of the pot. You can dip a small bowl in soy sauce.