Jonathan Gagné, astrophysicist and author of The Physics of Filter Coffee, turns his focus to espresso in this groundbreaking volume. The Physics of Espresso combines rigorous scientific analysis with hands-on experimentation, presenting espresso not as mystery, but as a system governed by physics, chemistry, and careful control.
From pressure profiling to flow resistance, from particle size distribution to temperature stability, every aspect of the process is broken down with clarity and precision. The result is a reference for those who approach espresso as both craft and science.
Whether you are a barista, roaster, or simply an obsessive home brewer, this book offers tools and frameworks to refine your understanding, elevate your practice, and bring espresso into sharper focus.


