Question about Krups XP4030 Espresso Machine

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Coffee is weak / Is pump supposed to kick on and off during brewing or run steady

I just purchased an xp4030 and ran the reccomended cleaning cycle (2 times. If I remember correctly the pump kicked on and off while it ran with no coffee in the filter, but not sure if i am remembering correctly or not.

The folowing morning I attempted my 1st brew, the pump ran steady and the coffee was light and weak. I called Krupps because the instruction book even suggested that the pump should run for 3 second intervels untill the brewing process is compleate. They told me that the pump runs steady and that it must be the way i am tamping it they also suggested that the instructions are wrong about tamping it and that you should not they said that they may be changing these instructions and that i should try tamping differently. I tried different tamping, it did not work. I think they are wrong about the pump, the instructions say it will kick on and off and i think by running continually it is forcing the water through before the coffee has a chance to brew. has any one else had this issue and is Krupps correct about the pump or am I (the girls i spoke to said they tested their machine and it ran continually, im wondering if theirs is broken as well) as I said before I think the first time i used it (the cleaning ) it did kick on and off

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  • Anonymous Nov 05, 2008

    Ditto. I have espresso ground coffee but my espresso is still weak. I served my time as a barista, so I'm a little picky, but others have commented on it as well. 

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On percolated (filter) coffee machines:

Check water temp, if water temp is insufficient , most common is scale heating element , faulty element, faulty thermostat.
Check if water is dripping right at the center of the filter, if it is dripping on one side because the orifice is clogged, that can result in weak coffee.
Coffee blend not well distributed on filter basket.

On Espresso machines:

Check water temp, same as filter coffee machines (thermostat element, scale on heating chamber).
Ensure that coffee is filled correctly in the filter cup (fill at level), and well pressed.
Ensure that the coffee mixture that you are using is not too coarse, buy the apposite one for espresso.
Ensure that you are not leaving the machine brewing for a time that is too long, and Italian coffee cup is very small, approximately one regular shot.

On the hob moka pots (espresso, Moka and Bialetti type):

This are the trickiest ones, you need art and practice to get a good espresso with a Moka, but when you learn, the result is better than what you may get with an home electrical espresso maker.
The frame on the hob must be not too strong, and the mixture coarse but well pressed, with water at level tag, or you will get a weak coffee.
On Mokas a good strategy is keeping hob at minimum, and turning up the flame at top when coffee starts coming out.


Note: insufficient pressure and clogged lines on electric machines never give you a weak coffee, exactly the opposite.
Not pressed mixture always gives weak coffee, but too much pressed mixture may give you coffee with bad taste.

Posted on Apr 01, 2009

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