White sour soup

White Acid Soup White Acid Traditional white acid is made by slowly fermenting rice soup in a sour soup bucket. The quick and simple white acid is to knead 300g of old flour used as dough, put it into a pot, add 5kg of clear water, fully dissolve it, pour it into a pot, set it on fire, stir while heating, and then pour 100g of glutinous rice flour (also corn flour and yellow bean's) into the pot after mixing with clear water. After the soup in the pot is boiled, pour it into the jar and seal the mouth, and let it stand at a slightly higher temperature for a day or two. White acid with milky white color and pure sour taste can be used. Sour soup, like kimchi water and brine, is preserved properly, and the more it is preserved, the more fragrant it is.
Reprinted with attribution： https://cnlocality.com/(Chinese Specialty Products)