The steamed sweet potato bag collapses when it comes out of the pot. What happened?

First of all, there is something wrong with the dough. When making sweet potato dough, we must pay attention to the changes of the dough surface. If there are big pores, it proves that the dough has been over-fermented, then the steamed sweet potato dough will die out of the pit.

Secondly, there are problems in the control of temperature and time during steaming. Generally, the best time for steaming sweet potato steamed buns is 15 -20 minutes, and the temperature is most suitable with medium heat.

Finally, don't lift the lid for the first time after turning off the fire, and let the sweet potato wrap in the steamer for 5 minutes.

Function 1: Steamed buns have a lot of heat and are easy to shrink when encountering cold air.

Function 2: let the steam in the pot preheat for the second time to ensure maturity.

Function 3: It is also a cool process, which helps the effective development of sweet potato foreskin during the gradual loss of temperature.