10-15 minutes.

Wash the sweet potatoes and dry them well; add some hot water to the pressure cooker, then put the washed sweet potatoes into the pressure cooker, put the lid on and steam them for about 10 minutes, then turn off the heat and cook them for 5 minutes, then turn off the heat, and then cool them down a little bit after the steam in the pressure cooker finishes by itself and then you can eat them.

Pressure cooker relative to ordinary pots and pans, the speed of heating up a little faster, because it has a layer of rubber ring on the lid, can effectively block the internal heat outflow, so that the domestic temperature quickly break through 100 degrees. And the most important thing to heat the food is the temperature, if the temperature is high, the heat can be transferred to the food faster, so the pressure cooker steaming sweet potatoes, usually only need to steam for about 10-15 minutes can be served.

Pressure cooker to cook sweet potatoes Note:

Sweet potatoes mainly contain a lot of starch, the water content is very low, if you use the pressure cooker directly to steam, it is easy to paste the pot phenomenon, so the pressure cooker to steam sweet potatoes, generally need to put some water. However, it should be noted that if you add too much water, it will become a boiled sweet potato, so the pressure cooker in the steamed sweet potatoes, generally only need about 100 ml of water can be, about the bottom of the sweet potatoes 1-2 cm or so.