1. Scrap the grapefruit peel, use salt to wash off the wax on the surface, wash it a few more times
2. After cleaning, use scissors to cut the skin into 4 or 5 cm wide strips
3. Add the right amount of salt
4. Add appropriate amount of warm water, pour it into the water and soak for two hours (the purpose of soaking is mainly to remove the bitterness of the skin. You need to change the water twice in the middle. You don't need to add salt after changing the water. If you don't like the bitter taste, you can soak for more time. I soaked for almost six hours)
5. After soaking, put the grapefruit peel in the bottom of the pot, and add the water that has not covered the grapefruit peel
6. Add the right amount of sugar and bring it to a boil (I consider children to eat, so I add more sugar)
7. The fire is boiling
8. Then reduce the heat to collect the juice
9. Juice collection is about to be completed
10. Perfectly served on a plate~~
