You need to use microwaves. Since the wavelength of microwaves is relatively long and its penetrating ability is stronger than that of light waves, it can roast the whole sweet potato from the inside to the outside. This is a bit like heating steamed buns in a microwave oven;
Due to its short wavelength, the light wave has weak penetrating ability, which may burn the skin of the sweet potato but not yet cook the inside. It is generally suitable for foods such as barbecue that need to be crispy on the outside and tender on the inside.
If you put a raw sweet potato in a microwave oven and heat it, it will be very dry, and it will become harder and unpalatable after cooling. The amount of nutrients lost is less than the traditional cooking method, and it is quite delicious, soft and waxy, and very fragrant·This is my own experience·
Wash the sweet potatoes and put them on top Poke a few more holes, and then bake the sweet potatoes in the microwave over medium heat. Because different microwave ovens have different firepowers, there is no need to set a specific time. Take it out after baking for a while, and squeeze it with your hands until it becomes soft. Cook until cooked.
Extended information:
Microwave oven roasted sweet potatoes steps:
1. Wash the sweet potatoes first so that there will be moisture on the surface of the sweet potatoes, and then use a layer of kitchen paper Or put the sweet potatoes in a plastic bag and wrap the sweet potatoes tightly.
2. Put the wrapped sweet potatoes in the microwave and turn them over high-medium heat for 5 minutes (4 minutes for smaller ones and 8 minutes for larger ones).
3. Then take it out and press it with your hands. If it is not soft, turn it for another 2-3 minutes. If it is soft, remove it from the plastic bag and turn it over medium heat for about 3 minutes. Tip: You can put it directly in the microwave oven and heat it up for about 6 minutes. You can try it yourself and the result will be very good.
Reference: Baidu Encyclopedia - How to roast sweet potatoes in microwave oven