The specific differences and differences between the two are as follows:
From the appearance, the edible alkali is solid, pure white and soluble in water. The most common edible alkali is white fine powder. The appearance of baking soda is also white, but it is fine crystal, similar to edible salt.
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In usage, edible alkali can swell dry goods or soften fibers, and can remove sour taste. The use of baking soda does not need to be boiled with water, but only needs to be fermented in flour and then stirred with water.
In application, edible alkali can be used as food additive and can also eliminate dirt. Baking soda can be used to remove the odor in containers and refrigerators.
Chemically speaking, the main component of edible alkali is sodium hydroxide, and the component of edible baking soda is sodium bicarbonate. So there is still a big difference between the two.