It usually takes 25 minutes to steam until it is cooked through.
If you are not sure whether the sweet potato is steamed, you can use chopsticks or forks to insert it from the surface of the sweet potato. If the sweet potato is easily inserted through, it means the sweet potato has been steamed. If the middle of the sweet potato is not yet cooked, If it is inserted, there is still a hard core in the middle of the sweet potato. You need to steam it for another 3 to 5 minutes to determine whether it is cooked. In addition, the steamed sweet potato will have a strong potato aroma. When you smell the aroma, it means that the sweet potato is almost ready. Steamed.
Extended information:
If the sweet potatoes are relatively large, it will not be easy to steam them. It is best to use a knife to cut the sweet potatoes into even sizes and then steam them. This will ensure that the sweet potatoes cook quickly. Steaming can avoid the phenomenon that some sweet potatoes are larger and some are smaller, and some are cooked while others are not yet cooked when steamed.
Steaming sweet potatoes with hot water reduces the water boiling time from the beginning, thereby speeding up the steaming time of sweet potatoes, and the taste of sweet potatoes steamed with hot water and sweet potatoes steamed with cold water is better. The taste is the same without affecting the nutritional value.