It is normal for fermented dough to smell of wine. In the process of dough fermentation, yeast converts sugar in flour into carbon dioxide and ethanol (that is, alcohol) through anaerobic respiration, so it sometimes smells alcohol. The smell of this wine is not harmful to human body, so the fermented dough can be eaten. Don't eat the dough if there are other abnormal conditions, such as mildew and odor, to ensure food safety.