At present, people pay more attention to food safety, but there should not be many kinds of additives used in making steamed stuffed bun skin, but it should not cause too much harm to the body if it is eaten in large quantities for a long time.
Why are the buns sold outside so soft?
The steamed buns sold outside are not only leavened with yeast, because yeast will be affected by temperature, humidity and time. If the temperature is low, the humidity is low and the time is short, the yeast will not produce enough gas, the dough fermentation effect will not be obvious, and the steamed buns will not be soft.
Therefore, in addition to adding proper amount of yeast, the steamed buns sold outside will also add baking powder, which is not affected by temperature, humidity and time, and will produce a large number of bubbles when heated, which can not only save the time for secondary fermentation, but also make the steamed buns skin fluffy and soft.
Why can't steamed buns sold outside be hard when they are cold?
Although I usually suggest that when making steamed stuffed buns, we should add a proper amount of lard to the dough to solve the problem that steamed stuffed buns are cooled and hardened. But many people say that the steamed bun shop won't do this because the cost of lard is too high.
The phenomenon of adding flour improver can't be ruled out. Adding flour improver, a white powder, into flour to neutralize flour can make the texture of flour more delicate, change the structure of protein, make the surface of finished products smooth and elastic, and it also has a good water-retaining effect, which makes steamed buns hard to dry.
I think the regular store management is more secure in quality than some street vendors. If there is no credible choice, do it yourself at home!
Cooking steamed stuffed buns at home requires no baking powder or flour improver. Before the dough is fermented, the proper amount of yeast and sugar should be melted with warm water that is not hot, and the dough will be well proofed. When exhausting, add a little lard to the dough, and then steam the wrapped steamed buns in the pot after the second awakening. After steaming, continue to stew for a few minutes, and the steamed buns are also fluffy and soft.
If you want to make fluffy and soft buns at home, you can check my previous questions and answers or articles.