1. Five sweet potatoes are washed and dried, as shown in the figure.

2. Lay tin foil on the bottom of the pressure cooker, as shown in the figure.

3. After laying, put five sweet potatoes in the pressure cooker and put them away, as shown in the figure.

4. Then cover the pressure cooker, as shown in the figure.

5. After the next step, remove the cover, as shown in the figure.

6. Finally, take out the sweet potato and let it cool to eat, as shown in the figure.