First wash the sweet potatoes, and then use a knife to cut 3 evenly on the sweet potatoes, put into a plastic bowl covered with a lid, and then put into the microwave oven with a high-fire turn 5 bells can be (uniformly small sweet potatoes) if it is a large sweet potatoes with a knife to cut the mouth slightly deeper after 1 point, and then turn the high-fire now for 6 minutes, and then take out and turn over, and then continue to turn the high-fire for 7 minutes will be able to.