1. Because there is a layer of wax on the outer surface of the grapefruit peel, first wash the grapefruit peel with salt, then peel off the grapefruit peel finely, then remove the white flesh (bitterness), wash it repeatedly with salt, and cut into shreds after pickling for one hour
2. During the period of pickling the grapefruit peel, peel off the pulp and place it in an empty plate
3. Put the chopped grapefruit peel and pulp into the pot together, pour in water, and the water will spread over the pulp
4. Simmer on low heat, add appropriate amount of rock sugar, add according to personal taste
5. When making jam, pay attention to stirring and maintain the firepower to avoid muddy bottom. After boiling, let it cool and pour in honey for three days.
