Coffee extraction (IMAGE)

American Institute of Physics

Coffee extraction

Caption

In this figure, Q is the rate of flow, epsilon is the porosity (which increases as coffee is extracted), and c is the concentration of dissolved coffee (a measure of the strength of the espresso).

Credit

W.T. Lee, A. Smith, and A. Arshad

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Journalists may use this image only with appropriate credit and when reporting on this research.

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