Baking method of 350g: After the sweet potato is scrubbed, the sweet potato is directly wrapped with a layer of kitchen paper towel without water control, and then wrapped with a layer of newspaper. Put the wrapped sweet potato in the microwave oven and bake at 650 watts (or medium heat) for 4 minutes. Turn the sweet potato to the other side, and continue baking with 650 watts (or medium heat) for 4 minutes.