Problem with New ECM Classika II PID

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Erich114

#1: Post by Erich114 » Nov 09, 2019, 3:15 am

Hello,

I'm a newbie so please forgive my stupidity!

I recently bought a new ECM Classika II PID with Eureka Atom grinder.
The first shot was awful, even with the finest grind, my machine is pumping out watery coffee, the flow was too quick (25 secs will reach 150ml), the gauge reads around 3-4 bars when brewing. Did I miss a step or doing something wrong?

Much appreciated your help!!

Erich114

#2: Post by Erich114 » Nov 09, 2019, 4:04 am

Ah! Just now I switched to single basket it was working fine, must be something wrong with my double basket...or I didn't fix it properly in place!

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truemagellen

#3: Post by truemagellen » Nov 10, 2019, 4:15 am

Congrats on the new machine. What grinder do you have? How fresh are beans?

Erich114

#4: Post by Erich114 » Nov 10, 2019, 10:20 am

thanks mate!
I've got a Eureka Atom

I've done soooo many tests, since I haven't got a tamper so I've using the stock plastic thing, and it seems I'm either tamping too hard or soft, so for single shot I either get 3g or >45g of coffee...... I'm going to get a proper tamper and try again....... :x

Erich114

#5: Post by Erich114 » Nov 10, 2019, 10:27 am

beans are like 2 weeks old, so I don't think it's the cause of problem..
now i'm getting problem with the single basket as well, on 14g dose, it's either brewing too quickly or slowly.. (with 20secs I get either 3g or >45g of coffee), tried adjusting my grind and marked down it's not very consistent, so I guess it's my tamping..

Bluenoser
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#6: Post by Bluenoser » Nov 10, 2019, 4:15 pm

Single baskets are usually designed for 6-10g.. and double about 15-20g.. You might want to try 15-16g doses in the double basket and you might find it easier to dial in.. The tamper should be okay.. can't see that being the big culprit.. and can't see it being the double basket. However, do you have a bottomless portafilter..? If not, that is the first thing to buy. Your issue might be inconsistent distribution. This will cause channeling that you can only see with the bottomless. It's a nuisance to have to pay more for accessories.. but the bottomless is invaluable to progressing in the whole .. distribution - tamping ... phase. Channeling will cause the water to take a fast path through a 'crack' in the puck and so you get a lot of water really fast, but no coffee extracted.

I think most people use a 'double' in their drinks.. the single basket is harder to dial in than the double; and many people only use their double baskets.. If they want a single, they still use the double dose and double basket with the double-spouted PF and let one drain into the tray..

If you buy a tamper, you might want to consider a 58.4mm one. Slightly larger than 58mm as they generally fit your stock baskets more precisely.. However, take your baskets into a shop to test with tamper, if purchasing from a store. I think flat is considered better than concave. But even with stock tamper you should be able to get good shots.

JRising

#7: Post by JRising » Yesterday, 10:08 am

I'm going to repeat Bluenoser's suggestion that you use the double basket. I know I found it much easier to learn dosing and dialing in a grinder with the double basket. For one thing, it has so much more perforated surface area that you're relying on the coffee grounds to provide the pressure drop, the basket creates very little resistance to flow. A single basket can start making your espresso look decent even when your grinder is still way off.
If you're not sure your grinder is dialed in, start from the choked off point. Keep setting your grinder finer and finer in large steps until you get to the point where it chokes off all the flow in your basket. Then back off, adjusting just slightly coarser in small steps until the flow looks like what you expect. Then you can adjust slightly either way to try to get your 28-29 second 1.5 oz shot. From there, start tasting or actually drinking them, adjust slightly up or down after every 2 or 3 shots to see what difference or improvement it might make.