In the first way, we can roast cold roast duck in an electric oven. As long as there is an electric oven at home, we can put the roast duck in the electric oven, bake it at low temperature for about 5 minutes, then raise the temperature, and bake it at high temperature for about 4 minutes to heat it successfully. The roast duck heated in this way is more delicious and fragrant.

The second method, some people may ask, there is no electric oven at home, is the microwave oven ok? Of course you can. We can also roast the roast duck in the microwave for about 4 minutes. When the time is up, you can slice the roast duck and heat it in the microwave for about one minute. This kind of slice makes the oil easier to absorb and tastes better.

The third method, don't give up when there is no electric oven or microwave oven at home, because a small pot can actually heat the roast duck successfully. First, we pour some water into the pot, and then put the roast duck on a plate. After the roast duck is steamed in boiling water for about 8 minutes, we can pour the boiled oil into the roast duck, so that we can get an effect of expanding with heat and contracting with cold, and make the roast duck return to its previous crispy outside and tender inside.