How does the Nescafe Dolce Gusto coffee machine work?

The NESCAFÉ® Dolce Gusto® machine pumps water into its capsules at up to maximum 15 bar pump pressure. The high pressure, and the capsule design, deliver an even distribution of pressure to extract the coffee’s full flavour.

The system uses a pump pressure similar to that of professional machines, while coffee percolators operate at one bar of pressure (normal atmospheric pressure).
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