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What is a Saturated Group Head?

Espresso Technician

Question: What is a Saturated Group Head?

Answer: A saturated group head is one that is surrounded in water from the boiler.  Instead of a completely separate component, the group head acts as an extension of the coffee boiler, allowing for consistent water temperature throughout.  Many machines use tubing to route the flow of water outside and around the grouphead, which can rapidly change the temperature.  Saturated group heads draw water from directly inside the boiler, which translates to stable brew temperatures, every time.


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