2. Practice: Wash perilla leaves, ginger and peaches for later use. Boil a proper amount of water, add rock sugar, melt, add perilla leaves, turn off the fire and let it cool for later use. Put a layer of peach and a layer of ginger in the bottle in turn, finally put the cooked perilla leaves on it, pour in perilla and fill it with water, cover it and put it in the refrigerator for 3-4 days.