During the processing of walnut dew, the high fat content of raw materials or the large amount of raw materials will lead to the phenomenon of fat floating to some extent. In addition, reducing the use of additives in the processing of walnut dew will also increase the floating amount of fat to a certain extent, resulting in floating on the surface of beverages in the form of fat layers or fat slices. Products with floating fat can be drunk normally within the shelf life, and will not cause harm to human body, and the nutritional value has not changed. Even from a certain point of view, such drinks are safer to drink and have higher nutritional value.