#coarse grind but shot still comes out too slow

15 messages · Page 1 of 1 (latest)

potent lichen
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I recently got a bottomless unpressurized portafilter and having trouble dialing in espresso. I’m using a Delonghi ECP3630 and a Timemore C2 @ 14 clicks which is pretty coarse for espresso as you can see.

My does is 18g and 40g out. However each time I pull a shot it takes like a minute.

Should I try reducing dose or maybe there’s something wrong with my pump?

shadow rose
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What is the debit of your machine without portafilter ?

Easiest to just flush into a cup for 30s / 60s and see how much got out

potent lichen
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wdym by debit?

potent lichen
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@shadow rose

shadow rose
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How much water comes out without portafilter

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When just flushing

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Measured in gram / second

potent lichen
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1.47g/sec

shadow rose
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Yeah that’s not enough. I think 6 is a normal value. Higher is common too.

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I’d first descale the machine thoroughly, with a high quality descaler solution. (I recommend Calcinet, not affiliated ehhhh )

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Then if that doesn’t fix it, see if there’s other obstructions or the pump is dead.

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Don’t use vinegar or that stuff

potent lichen
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alr thanks; so theres just not enough pressure going through?

shadow rose
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Not enough flow to build pressure yeah