1. Wumei dry cleaning; hawthorn dry cleaning; jujube cleaning twist; mint cleaning; if it's a big piece of ice sugar to break;
2. Put black plum, hawthorn, Chinese date and Schisandra into the pot together (do not use iron pot), add water, boil in high heat, turn to medium heat, keep boiling for about 30 minutes;
3. Add in the rock sugar and cook for about 10 minutes. Taste the taste and adjust the amount of rock sugar.
4. Add fresh mint and turn off the heat immediately. (if dry Mint is used, cook for another 5 minutes)
5. After cooling to room temperature, filter out the solid;
6. It can be drunk by fine filtration again; it is better to drink it after refrigeration or adding ice.