Real human face photos can be printed onto macarons or other kinds of food as well, their printing result resolutions also can be well. Usually, the more white the background color of macaron be, the better printing result will the printed macarons be.
Video 1 shows different human face photos were printed onto macarons at one time. Depends on the max working size of the food printer machine, it can print on more macrons at one time. Video 2 shows full working size printing for macarons. How many piece of macarons can be printed at one it, which is based on the max working size of each printer and the size of the macarons needed to be printed.