1. Step 1: Peel, wash and slice ginger, as shown in the following figure.
2. Sprinkle with salt and marinate for 2 hours.
3, 2 hours later, take out the ginger slices, sun 1 hour.
4. Put the rock sugar and boiled water into a bowl to melt the rock sugar.
5. Pour in white vinegar and mix well.
6. Put the ginger slices in the jar, pour in the sweet and sour water, and keep them in the refrigerator for a week, and the sweet and sour ginger will be ready.