As stated by Benjamin Greimel he is the robotic pioneer for the Print-A- drink microinjection. the design is created by precisely injecting microscopic dots of liquids into the drink in a predesigned kind of pattern. This process is done by a robotic arm.
These dots don’t dissolve in the liquid because they don’t react chemically inside the liquid.
Basically, these dots are edible such as oil, lemon, nuts, or vegetable.
These don’t have any effect on the taste.