Here, we must understand the function of adding alkali. In the process of making cold noodles, adding edible alkali is mainly to adjust the pH value of the flour paste to make it weakly alkaline, which is generally used when the precipitation time is long and the flour paste has a fermentation trend. If the settling time is short and the batter is not fermented, there is no need to add alkali, that is, the batter is not fermented, just adjust the density and make it directly, and nothing will happen.