Methods/steps:
1. Cut off the petiole of mulberry leaves with scissors;
2. Wash with clear water;
3. Boil the water until it changes color, take it out and drain it;
4. Knead and squeeze out some water;
5. Spread it flat on the baking tray;
6, into the oven to dry at 70-80 degrees, the oven door is stuck with chopsticks, leaving a thin seam for steam to come out;
7, complete, cool, put in a sealed bag, and take it with the bubble.