Steamed bread feels hard. I guess your dough is dry. Knead the dough softer. Moreover, baking powder does not need to be mixed with alkali. It is best not to use alkali, because alkali will destroy the vitamin nutrition in noodles. Don't use too much alkali even if it is necessary.
It takes only a few hours to make noodles with baking powder, and it takes about a day to make noodles with ordinary methods, so baking powder saves time and effort. The method is to add about 10 g of baking powder to a catty of flour. Without it, it won't work. If it is too much, it will affect the fermentation quality of flour. Stir them evenly first, then mix the dough with warm water, and you can wait for the fermented music for about ten minutes. It should be noted that the noodles must be moderately hard and soft, and never mix them too hard, otherwise they will taste bad.
Extended data:
Generally, it is no problem to eat cakes made of baking powder for a long time with normal dosage. Because it meets the national standards, some chemicals are maintained within the prescribed range, so you can rest assured.
The only thing to worry about is the baking powder containing aluminum salt, because aluminum is very harmful to human body, especially if it is eaten for a long time, it will cause diseases such as Alzheimer's disease, osteoporosis and even cardiovascular diseases, which is still a great threat to health. It is best to eat less of this baking powder. If it is DIY pastry at home, it is recommended to buy baking powder without adding aluminum salt to avoid long-term intake of excessive aluminum and damage to health.
References:
Baking powder-Baidu encyclopedia