University of Warsaw Study Analyzes Fluid Mechanics and Pressure in Espresso Extraction

Researchers at the University of Warsaw recently completed a study examining how fluid mechanics and porous media physics influence the espresso extraction process. The team analyzed the relationship between brewing pressure and the resulting chemical composition of the coffee to determine how specific physical variables affect the final beverage.

The study applies principles of fluid dynamics to understand how water moves through a compressed bed of coffee grounds. By observing the interaction between pressurized water and the porous structure of the coffee, the researchers identified how variations in pressure alter the extraction efficiency. These findings provide data on the physical processes occurring within an espresso machine during the brewing cycle, offering a technical look at the mechanics behind coffee preparation.

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Date: June 23, 2026

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