milk foam -- 002

milk foam -- 002

foam comparison

Researchers were able to generate a powder that can be used as a natural foaming agent. A potential application is the use in vending machines for cappuccino coffee as the foam is abundant and lasting. Below is a comparison of two cappuccino coffees … one made with standard skim milk powder and the other using powder obtained with high-pressure jet spraying and drying.

IMAGE: Federico Harte/Penn State