1, and their compositions are different:

Alkaline noodles, also known as soda and soda ash, are edible alkali, and the main component is sodium carbonate (Na2CO3); The main component of baking soda is sodium bicarbonate (NaHCO3).

2, the appearance of the two is different:

The appearance of alkaline noodles is solid, pure white, and easily soluble in water. Most of the common edible alkalis in our life are white bagged fine powder. The appearance of baking soda is also white, but its body is fine crystal, similar to the feeling of salt.

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3. Their roles are different:

The strength of alkaline noodles is greater, and it can neutralize the sourness when it is leavened. If it is fermented too much, it will produce sour taste and affect the taste, so it is necessary to use edible alkali to neutralize the sourness. Baking soda has no activity, but it produces a lot of CO2 to cause bubbles, which plays a fluffy role.

4, the use of the two methods are different:

When using alkaline noodles, you need to melt them with warm water first; Different from alkaline noodles, the use of baking soda does not need to be boiled with water, but only needs to be put into the flour to be fermented and then stirred with water.

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5. Their alkalinity is different:

Alkaline noodles contain not only sodium bicarbonate, but also sodium carbonate, so the alkalinity of alkaline noodles is stronger than baking soda, so just put a little when using it; Baking soda is mild in alkalinity. When it is used for bread or steamed bread fermentation, it will not cause bitterness or other discomfort even if it is used in excess.

References:

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References:

/baike.baidu.com/item/%E7%A2%B3%E9%85%B8%E6%B0%A2%E9%92%A0/2735773? Fr = Aladdin "target =" _ blank "title =" Baidu Encyclopedia-Sodium Bicarbonate "> Baidu encyclopedia-sodium bicarbonate