Taste mapping by profile style
How different espresso profile styles—pressure, flow, and temperature manipulations—map to sensory outcomes in the cup.
Summary espresso
Calibration for espresso vs filter
How to calibrate a grinder for espresso versus filter coffee, and why the grind requirements differ between methods.
Puck compressibility and porosity
How the compressibility and porosity of an espresso puck influence flow resistance, extraction uniformity, and cup quality.
Espresso martini fundamentals
The history, recipe, and technique behind the espresso martini, the most famous coffee cocktail, balancing caffeine kick with cocktail elegance.
Safety and regulatory compliance
Key safety practices and regulatory standards that govern espresso machine operation, installation, and maintenance.
Common repairs and diagnostics
The most frequent espresso machine repair issues, how to diagnose them, and best practices for resolving them safely.