2. Wash lotus seeds and mung beans and soak them for half an hour in advance.
3, melon peeled to pulp, washed, sliced.
4. Pour proper amount of water into the pot, add lotus seeds and mung beans and cook for 40 minutes.
5. After cooking, pour into the pot, add melon and rock sugar, add red dates and longan to boil, turn to low heat for 10 minute, add medlar, cover the pot and stew for 5 minutes.