1, put the purple sweet potato into the pot, pour clean water, and wash the purple sweet potato skin.

2. Put the washed purple potato in a ventilated place to dry for later use.

3. Adjust the oven temperature to 2 10 degrees Celsius, and set the preheating time to about 8 minutes.

4. After the oven is preheated, wrap the dried purple potato in tin foil and put it on the grill in the middle of the oven.

5. Close the oven door. Bake the purple potato at 2 10 degrees Celsius for about 25 minutes, and eat it without scalding.