1, generally we use the oven to bake sweet potatoes time should also be based on the size of the sweet potatoes, but if we choose some long and thin sweet potatoes, then baked sweet potatoes can be a little shorter time. Generally adjust the oven to 220 ℃, only need 30 minutes.

2, if the temperature is 240 ℃ then only need 25 minutes, if the head of the sweet potato is very large, we can properly extend the baking time. And if we pre-heat the sweet potatoes to half-cooked, bake at 150 ℃ for 10 minutes is almost the same.