1. If the lotus seeds are old, you can choose to soak them in water for a period of time (the recommended time is about half an hour). If it is fresh, you can choose to soak it for about 10 minutes.

2. Soak in hot alkaline water with the ratio of alkali to water of ten. After the alkali is dissolved, soak the lotus seeds for about an hour.

3. Pinch the lotus seeds by hand, the skin will fall off, and then soak them in hot water. Lotus seed meat swells and then rots when cooked.