Espresso guides, machine reviews, and barista technique from Papel Espresso — practical articles on dialing in shots, troubleshooting channeling, and machine care.
Programming Automatic Pre-Infusion on an Arduino Gaggia Programming automatic pre-infusion on an Arduino Gaggia For the dedicated home barista, manual control over every extraction variable is paramount. Integrating an Arduino…
How long should pre-infusion last for light roast espresso? For home baristas working with manual and advanced espresso machines, pre-infusion is a critical variable, especially when handling light roasts. These…
The role of pre-infusion in preventing espresso channeling For the dedicated home barista, few things are as frustrating as a well-prepared shot of espresso ruined by channeling. This common issue,…
The pursuit of the perfect espresso shot is a journey of controlling variables. For decades, baristas have focused intently on pressure, temperature, grind size, and dose. However, a deeper understanding…
Troubleshooting Unstable Pressure Readings in Your Modded Gaggia Troubleshooting unstable pressure readings in your modded Gaggia For the manual espresso enthusiast, a pressure gauge on a Gaggia Classic or similar…
Why declining pressure profiles reduce espresso bitterness Why declining pressure profiles reduce espresso bitterness For decades, the standard for espresso extraction has been a consistent, flat nine bars of pressure.…
Manual espresso machines offer a level of control that invites exploration beyond the fixed parameters of conventional equipment. For experienced home baristas, one of the most powerful variables to manipulate…
How pressure profiling can save a fast espresso extraction How pressure profiling can save a fast espresso extraction For the experienced home barista, a fast-flowing espresso shot is a familiar…
The pursuit of exceptional espresso is often a journey into the finer points of extraction control. For users of manual and prosumer espresso machines, managing the flow rate and pressure…
Understanding the Relationship Between Flow Rate and Pump Pressure The relationship between flow rate and pump pressure For decades, the conversation around espresso extraction has been anchored to a single…
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