We northerners cannot live without the staple food is pasta, among which steamed bread is deeply loved by everyone. We all know that before steaming steamed bread, a process is to add baking powder. Only in this way can steamed bread be soft and delicious.
Yeast as a starter, the absorption of nutrients in the dough and growth and reproduction, the flour in the glucose into water and carbon dioxide gas, so that the dough expansion, soft, honeycomb structure.It is also a prerequisite that the dough creates enough gluten in the kneading process to cover the carbon dioxide gas and keep it from escaping, keeping the dough expanded and soft.Yeast must have water to live, and the most suitable growth temperature is 20 ℃ ~ 35 ℃, below 0 ℃ or higher than that of 47 ℃ temperature, yeast cells can grow commonly, the most suitable role of humidity is around 75%.