Today's tofu skin is used, and before tofu is eaten, it is better to sew water, so that the tofu skin can go a little further, so that the tofu skin can be removed from the dust on the surface of the tofu skin and made more hygienic, but to keep the tofu skin tastes, and after the water, it has to be added, which is cold water, because it is a direct entrance, so it is better to open it in cold white。