Fermented with baking soda, steamed bread is not only soft but also delicious, but baking soda will seriously destroy the B vitamins in flour. In our daily diet, the B vitamins we need are mainly obtained from grains, which makes baking soda fermented steamed bread strongly opposed by many nutritionists. Baking soda is what we often call alkaline noodles. Many food stalls and porridge shops often use it. It can shorten the cooking time of porridge and make porridge with less grains look sticky, but it also destroys the little vitamin B in rice.

Laomian fermentation

Compared with baking soda, it seems better to ferment with old flour without destroying the nutrients in flour. After fermentation, phytic acid contained in flour can be decomposed, which hinders the absorption of calcium, iron, magnesium and other elements, making these nutrients more easily absorbed and utilized by the human body. However, this kind of fermentation will make the dough sour, which will cause many people to be dissatisfied with the taste of steamed bread.

yeast fermentation

Yeast fermentation can be said to be the most respected flour fermentation method by nutritionists. Steamed steamed bread not only tastes good, but also has very high nutritional value. There are two kinds of yeast: dry yeast and fresh yeast, which belong to single-celled microorganisms. Yeast itself is edible and nutritious. Yeast not only contains carbohydrates, protein and fat, but also contains rich minerals, vitamins and enzymes, especially vitamin B group. Studies have proved that the content of protein per 1kg dry yeast is equivalent to that of protein in 2kg soybean, 2.5kg pork or 5kg rice. Therefore, it can be said that the nutritional content of steamed bread fermented by yeast is more than 3 times higher than that of steamed bread fermented by old flour, and nearly 2 times higher in protein. In addition, yeast also contains minerals such as selenium and chromium, which has the functions of resisting oxidation, delaying aging, preventing tumors and cardiovascular diseases, and improving human immunity.