Pictures are put on coffee using a specialized machine called a coffee printer that prints images directly onto the foam layer of the beverage.
The Coffee Printing Process
This fascinating technique, sometimes referred to as latte art printing, utilizes technology similar to inkjet printers but specifically designed for food surfaces.
How the Machine Works
A coffee printer is a desktop-sized device designed to sit near the coffee station.
- Cup Placement: A cup of coffee (or other suitable beverage like beer) with a good layer of foam is placed on a platform within the machine.
- Image Selection: An image (which could be a pre-made design, a photo like a selfie, or even text) is selected, often via a connected device or built-in screen.
- Printing: The printer uses edible ink cartridges to precisely spray the image onto the surface of the foam. The ink is food-safe and tasteless, designed to sit on top of the foam without significantly altering the drink's flavor.
What Can Be Printed?
As highlighted in the reference, these machines are versatile:
- Selfies and Personal Photos: A popular choice for a personalized touch.
- Pre-made Designs: Logos, shapes, patterns, and stock images.
- Inspirational Messages: Text can be printed alongside or instead of images.
The reference specifically mentions the ability to print pre-made inspirational messages, shapes and pictures in addition to selfies.
Beverages That Can Be Used
While most commonly seen on lattes, cappuccinos, and other foamy coffee drinks, the technology can also be applied to other beverages with a stable foam layer. The reference notes that printing can even be printed on beer, demonstrating its application beyond just coffee.
Essentially, the process transforms the foam into a canvas using edible ink printed by a dedicated machine.
