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Too much pressure and not coffee - Coffee Makers & Espresso Machines

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Ena9 coffee comes out is bitter


The most common cause of bitter coffee is that the water is too hot. And the most common cause of too hot water is too much pressure in the boiler. So, the first thing to look at is the pressurestat of the machine, it should be accessable and adjustable. 1.5 bar is often the maximum pressure for good coffee (don't confuse it with the 11 bar pressure in the grouphead when brewing).

Jul 28, 2014 | Capresso Jura-Silver/ Black ENA 9 One...

1 Answer

Pressure valve


Generally, this is not a problem with the machine but with how you're loading the coffee! Sounds typical of one of these problems:-

Not enough coffee in the basket
Coffee should be filled and tamped to about 3mm below the rim.
Coffee grind not fine enough (too coarse)
Do you grind your own coffee or buy ready-ground? If buying ready-ground, make sure it is for espresso (fine) and not for filter or plunger.
If you have your own grinder, (like the Sunbeam Conical Grinder), then make sure the coffee hopper on top is securely connected to the grinder. I'd been using mine for years on the the finest grind (1) not realising the hopper wan't on right. Only discovered it when I took it apart to clean. Now my grinder is on 9-10 to grind for espresso.
Coffee not tampered down hard enough
You do need to provide a reasonable degree of pressure to tamp he coffee down just right.
Group head not turned tight enough
Push the group handle as far to the right as it will go, then ease it back just a fraction to have the right pressure.

Jun 22, 2014 | Sunbeam Cafe EM6910

1 Answer

I can achieve normal pressure only by using dual wall baskets.


The grind is too coarse or the tamping is too light, or a combination thereof. Use some bathroom scales to get your tamping pressure right and then adjust the grind accordingly.

Jul 26, 2013 | Breville Fresca BES860 2Cup Coffee Maker

1 Answer

WATER IS CLOGGED DOES NOT HEAT AND TRANSFER INTO COFFEE BASKET


It is not usually clogged, when there's no heat it will not transfer in coffee container because there's no pressure. As you knew it is heat pressure that push it to transfer into coffee container or basket.
A open or defective heater or thermostat will caused that "no heat" in your coffee espresso makera.
I hope I answered you question clearly.

Mar 29, 2011 | Coffee Makers & Espresso Machines

1 Answer

Leaking coffee grounds and water


HI
There should be a small amount of coffee residue and about an oz. of water going into the drip tray. This is the pressure relief process, when the machine finishes the coffee making. If it didn't release the pressure thhis way you could have an explosion of coffee when it cycles back.

Jan 04, 2010 | Saeco Vienna Espresso Machine

1 Answer

I'm getting no crema from my Nuova Simonelli Mac 2000 V


Pressure pump is not working or can not produce 9 bar pressure.
Or the coffee is less tha 7 gr.
Or the coffee is grinded too thick.
Please remebr to vote for this answer thanks

Oct 15, 2009 | Nuova Simonelli Mac 2000 I Group Espresso...

1 Answer

Pump makes strange staccato sound at 1 second intervals. A little coffee dribbles out. Then it just shuts itself off. Seems to be a pressure problem?


Check the grind on the coffee or the packing pressure used to tamp. If it flows great without coffee in the portafilter, then the problem is the grind or tamp. The grind might be too fine that the pump has to use so much pressure that the relief valve open and most of the water goes into the drain tray.

Jun 28, 2009 | Krups XP 4000 Espresso Machine

1 Answer

My kitchenaid artisan coffee machine not enough water


if you have water out brewing without handle with coffee, than you check this 3 things:
  1. how fine is grinded the coffe, is it too fine for your machine?
  2. does pump make enough pressure to brew your coffee(you can measure if you attach an gauge to handle or steam pipe.
  3. by any chance your boiler security valve opens too soon and dont let pump to get the needed pressure. (perfect pressure is from 7 to 9 bar)

Mar 31, 2009 | KitchenAid Artisan

1 Answer

No pressure build up to make good coffee


Turns out it was just old coffee holding the group brewer together. Ended up replacing the whole handle which cost AU$44, so not too bad really. It's like new now.

Nov 25, 2008 | Saeco Magic Espresso Espresso Machine

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