Steps:
1. Prepare a chubby grapefruit and rub the skin with salt several times.
2. separate the grapefruit skin from the pulp, and be sure to clean up the white pulp. Peach.
3. Boil the skin twice and wash it twice with clear water.
4. Put the skin, pulp and rock sugar into the pot together, add water to boil, turn to a low heat and simmer slowly. Remember to leave people to watch.
5. Cook for 30 minutes.
6. Boiled 1 hour.
7. Cook until the water content is obviously less and a little yellow. If there is honey, you can wait for it to cool down a little before adding it. If there is no honey in my house, don't add it.
Refer to the above? Baidu Encyclopedia-citron tea