To provide a method for producing a wafer, capable of producing the light and soft wafer having a good flavor, a good melting property in mouths and a smooth texture, and not having the smell of wheat flour, the smells of oils and fats, etc.

This method for producing a wafer comprises adding water to a raw material containing wheat flour and yeast, fermenting the prepared batter, defoaming the fermentation product, and subsequently baking the product. The raw material preferably furthermore contains at least one kind of material selected from starch, egg, a milk product, a sugar, an edible fatty oil or fat, cocoa, salt, a swelling agent, a perfume and an emulsifier. The batter is preferably defoamed using a Stefan mixer.