However, we should pay attention to two points. First, try to shoot in a low temperature environment, so that the hot air will be more obvious, or find a black object as the background, such as black clothes and black cloth, so that the hot air will be more prominent.
There is a more effective method which is often used in commercial photography. This method is flexible and can be adopted at any time. Dry ice is used, and now there is a special dry ice dish, which is the effect of fairy gas filling the table. The fog effect mentioned here is that a small amount of dry ice is placed above the food to produce fog, and the dry ice itself is not photographed.