1. Pour clean water into the basin, sprinkle a little salt, soak kumquat 10 minute, wash and air dry, and coarse salt;
2. Boil the orange with clear water, the water is slightly boiling, and the orange becomes full and bright. Don't boil oranges; (This step can be omitted);
3. Put oranges in a small basket, drain and air dry for one day; (If the second step is omitted, it needs to be aired for a few more days until the skin is wrinkled);
4. Stir-fry coarse salt with ginger slices for later use; (Ginger slices can be fried without frying, and other materials can be fried together);
5. Spread oranges all over the bottom of the jar, sprinkle a layer of salt, spread a layer of oranges, sprinkle another layer of salt, fill the jar, cover it and seal it;
6. You can eat it in two or three days, but the longer you leave it, the better it will taste. Therefore, it is recommended to store it for two or three years before using it, and you can make a small can every year. It is not recommended to put it in the refrigerator, which is easy to increase water vapor and lead to deterioration. It is best to keep it in a cool and dry place.