tinpanalley Senior Member Joined: 13 Dec 2012 Posts: 10 Location: Paris Expertise: I live coffee
Posted Tue Jan 28, 2014, 2:53pm Subject: DeLonghi Icona 310
I hope someone here can give me some pointers on my situation.
Everything was working perfectly with my Icona 310 for a few weeks and now, although the single filter seems to be working just fine, the double filter appears to be having problems. I'll describe the issue as precisely and succinctly as I can... Some things to note: - Coffee is ground to the right size, has always worked until the last two days - I use purified water so calcification isn't likely - I have experimented with various degrees of tampering - I'm using about 1 teaspoon of coffee per shot, which had been working fine and still does in the single shot filter. - I've cleaned the filter throughly before doing any tests.
I let a cycle run with no grinds to warm the cups, I then wait for the light to go green again signalling that the boiler is at brew temperature, I then insert the filter holder with grinds. Coffee begins to drop from the two filter holder spouts at about 8 or 9 seconds, perfectly dark coffee, but essentially as very quick drips. No steady flow. Less frequent drips by about 18 seconds. By about 25 seconds I've got crema drops. After about 30 seconds it's clear that the only 50-60% of a proper shot in quantity is ever going to come out. I remove the cups and when I detach the filter holder, the coffee grinds are a sludge with about a tablespoon or two of water in the filter floating on the grinds.
Any ideas whatsoever what could be causing this? I'd really appreciate some input. Thanks!!
Ok, cool. Thanks. I spoke to someone else as well and they said to experiment more with grind size. I've been grinding successfully for a Bialetti Moka Express on a Bodum burr grinder for years so I just thought I'd go finer for this Delonghi machine for espresso. I guess that was a bad assumption.
Well, after some quick testing it seems that the same grind size for my Bialetti is what worked perfectly for the Espresso machine. Interesting. I would have expected that it needed to be finer.
Does the filter basket have to be filled to the brim all the way with coffee? The instructions say a certain number of grams but I've seen videos online talking about filling your filter basket every time.
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