Group head valve schematic
This schematic shows how our espresso machines don't use a 3-way valve, but 2 separate 2-way valves. One valve is used for the shot, the other one for the drain.
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- Easy Blooming, compared to the Default and Gentle & Sweet profiles
- Evaluating what Michael's spacer and various shower screens do to coffee
- Reneka micro-sieve vs VST and IMS precision baskets: Hydraulic, extraction and sensory effects in espresso
- IMS CI 200 IM vs IMS SI 200 IM: Effects on espresso pressure, Extraction Yield, puck structure, and radial uniformity
mirjam created 2026/06/26.