From the point of view of human health, yeast powder is beneficial and harmless to our human body, but baking powder is not necessarily. Baking powder is a chemical initiator, which can be divided into two main types according to its components. One is alkaline, and the main components of this baking powder are sodium bicarbonate and ammonium bicarbonate, which are generally harmless to human body.

However, there is another kind of baking powder which is compound, and its main components are alum and ammonium alum. Alum contains aluminum, which is easy to cause Alzheimer's disease, osteoporosis and some cardiovascular diseases. It is unhealthy, and some aluminum salts used by unscrupulous merchants will cause brain cells to atrophy and die. Therefore, friends who often eat buns, steamed buns, cakes and other cakes outside should pay attention. Some unscrupulous merchants may use compound baking powder in order to ferment the pastry quickly.

Characteristics of yeast powder fermentation;

A large number of microorganisms in yeast powder can decompose maltose, glucose, etc., thus releasing carbon dioxide gas, causing countless small pores in dough. When baking or steaming, it can make pastry soft. It has the same effect as baking powder, but it does not rise as fast as baking powder, and it also needs the cooperation of temperature and humidity. These are some small shortcomings.

The biggest disadvantage of yeast powder is that the fermentation effect is unstable and easily influenced by external temperature and humidity, but yeast powder also has its obvious advantages, that is, pasta fermented by yeast powder has unique flavor and high nutritional value, so it is very suitable for home use.