The Physics of Espresso
by Jonathan Gagné
The Physics of Espresso – Jonathan Gagné
The definitive guide to modern espresso science
If you love espresso and crave a deeper understanding of the why behind great coffee, The Physics of Espresso is the book you’ve been waiting for.
Written by Jonathan Gagné, this groundbreaking book sets a new standard for espresso science. Clear, practical, and deeply researched, it bridges the gap between academic coffee theory and real-world brewing.
Often seen as the modern successor to Illy’s classic “Espresso Coffee: The Science of Quality”, Gagné’s work goes further — giving baristas and enthusiasts actionable insights they can apply immediately at the espresso bar.
☕ Inside the Book
Using a combination of published research, mathematical models, and extensive experimentation, Jonathan explores the physics behind espresso extraction — from grind to cup.
Every topic is explained in a way that’s approachable yet scientifically rigorous, making it the go-to reference for anyone serious about espresso.
Chapters include:
- 💧 Water Chemistry – how minerals and pH affect flavor and extraction
- ⚙️ Espresso Extraction – what really happens inside the puck
- 🧠 Percolation Science – understanding flow and resistance
- ⚒️ Grinding & Particle Distribution – how grind affects pressure and taste
- 🪄 Puck Prep – distribution, tamping, and avoiding channeling
- ⏱️ Shot Dynamics – the science of time, flow, and yield
- 📈 Pressure & Flow Profiling – optimizing flavor and balance
- 🌿 Coffee Storage & Freshness – how to preserve aroma and consistency
📚 Book Details
- Author: Jonathan Gagné
- Language: English
- Pages: 191
👃 Why we recommend it at WB.coffee
At WB.coffee / Amsterdam Coffee Lab, we believe in connecting science and sensory.
This book perfectly reflects that — it’s essential reading for anyone who wants to understand espresso beyond recipes.
Whether you’re fine-tuning your , La Marzocco, Kees, ECM, Profitec, Lelit, Rocket or just exploring espresso theory, The Physics of Espresso will sharpen your technique and deepen your appreciation of coffee.
🧠 Perfect for
- Professional baristas refining their craft
- Coffee educators & sensory trainers
- Espresso enthusiasts & home baristas
- Curious coffee nerds who love data, graphs, and experiments
📍 Available at WB.coffee / Amsterdam Coffee Lab (Weesp)
Pick up your copy online or in-store and start your journey into espresso science today.
Pair it with our WB.coffee espresso blends for the ultimate study session — theory meets practice ☕


