Gaggia coffee machine making espresso with no crema
My Gaggia coffee machine (Cubika), just over a year old — the espresso comes out with no crema and seemingly no pressure behind it. Is this a common fault on these?
1 Answer
Hi, yes, low pressure/no crema on a Gaggia Cubika is usually more of a brewing/water-flow issue than a single “common fault”, and it’s often something simple rather than a failed pump.
Try these checks:
1. **Coffee and grind** - If you’re using pre-ground coffee, it may be too coarse or stale. Lack of crema is very often down to the coffee rather than the machine. - Try fresh coffee with a proper espresso grind. If it’s too coarse, the water will run through with little resistance.
2. **Dose and tamp** - Make sure the filter basket is filled correctly and tamped evenly. - Too little coffee, or a very light tamp, can make the shot run weakly with no crema.
3. **Check the filter basket and group head for blockage** - Remove and clean the basket holes thoroughly. - Also inspect the shower plate/group outlet for coffee oils and scale. Partial blockage can upset extraction and pressure.
4. **Descale the machine** - If flow has changed gradually, scaling is a strong possibility, especially if you’re in a hard water area. - A scaled valve or restricted thermoblock can reduce effective brewing pressure.
5. **Listen to the pump and observe the flow** - If the pump sounds normal but water gushes through, suspect grind/dose/tamping. - If the pump sounds strained, intermittent, or flow is poor even with no coffee fitted, suspect scale, blockage, or a weak pump.
6. **Test with empty basket / hot water** - If water flow is also weak without coffee in place, the issue is in the machine rather than the coffee prep.
Do isolate it from the mains before inspecting or cleaning any internal parts. If descaling and cleaning don’t improve it, a qualified engineer should check the pump, valves, or internal blockages. WhitegoodsHelp AI
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