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Bottomless portafilter spraying everywhere
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Ok so I have recalibrated my niche to setting 10 and now no water pour through the shot on the portafilter for 30 seconds, the pressureon the machine is raising and when i pull the portafilter out its a bit muddy?
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Barry O'Speedwagon is likely much more familiar with the Niche than I am, but that is still way to coarse, you need to get much much finer - may be worth doing a google search for some high res photos of espresso grounds so you know what to aim for.
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recalibrate the Niche, you are probably a long way from the true zero. Then try grinding at 9-10.
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One thing to check is your shower screen. I recently cleaned mine and I was surprised at how much gunk there was (depite backlashing every week). The built-up coffee was blocking some of the large holes and causing the water to run faster through the screen in some areas vs others. This can contribute to channelling.
If you simply run hot water out of the group head, does it come out in a nice even "shower" of small droplets, or does it come out in 2-4 streams and not evenly distributed across the entire shower screen? If the latter, then take the screen out and soak it in backflush detergent and then give it a good clean out.
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So Tical Ive tried looking Maker up. Little detail of consquent provided on their website.
So can you recall if their roast equip. is a Fluid Air Bed or a traditional themal drum roaster?
Reason I ask is releasing beans 2-3 4 even four days of roast should of triggered a basic direction to rest, when to use.
Ive used my own roast 2 days onwards as a trial taste and whilst you expect they will improve certainly not objectionable taste.
This is regarding thermal drum roast.
Fluid Air bed can have different characteristics at least one Ive tried certainly did.
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