Perfect modification for E61 coffee groups, ideal for retrofitting, so you can monitor the extraction of the coffee.
Knowing the extraction pressure exposes tamping or grind issues, such as coffee too fine or too much coffee in the filter basket.
A big issue with coffee is the grind can change depending on the temperature or humidity at the time of grinding. Knowing the extraction pressure helps with identifying correct grind or tamping issues.
The ideal extraction is 9/10 bar and pre-infusion 2.5 bar approx.
Specifications:
Size: Thread 6 mm wide x 6mm deep x 14mm total length of pipe.
Diameter: 40mm
Material: Chrome and steel thread
Measures: 0-16 bars pressure (0-230 PSI)
ACS Minima - uses a wider thread - this E61 Gauge is too narrow
Easy to install:
⚠️Before you start – Unplug the machine and allow the group to cool down
1. Remove the hexagonal nut on the group using a 5mm hexagonal bit or Allen key.
2. Add *copper gasket to existing Teflon gasket and screw gauge clockwise - hand tight only - don't screw the gauge to the end of the thread. 3. You may not need plumbers' tape to make the seal.
4. Turn on the machine's water mains and try to make a coffee with a blind filter - check for leaks - tighten if necessary.
Easy to fit and I love being able to ensure my espresso is brewing at the right pressure! Improves consistency and taste of my espresso! Definitely worth it!
Galway, Ireland
