Pickling dry sweet foreign ginger is a traditional food processing method. Choose fresh foreign ginger, wash it, peel it, cut it into thin slices, and prepare the pickling material. Mix salt, sugar, vinegar and cooking wine together and stir well. Put the sliced ginger into the pickling material, add ginger and garlic, put it into a clean glass bottle and compact it. Put it in a cool and ventilated place, and you can take it out and eat it in about a week.