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Thread: Sticky Puck on Silvia

  1. #1
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    Sticky Puck on Silvia

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi CSs,
    Just wondering if anyone has experienced this prob and if there is a solution.
    Intermittently, the puck would stick to the shower screen when I remove the PF. Slightly annoying when one goes to bang on the bang bang to find no puck. I am using 2.5 clicks on a rocky doser for the double basket native to the silvia. I have a hex nut not a round nut and I flush the screen after each pull. Can anyone help? Thanks.

  2. #2
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    Re: Sticky Puck on Silvia

    Hi,

    I was wondering if you are using the plastic tamper that came with the silvia , because that maybe the problem . Get yourself a proper 58mm tamper youll really notice a difference

  3. #3
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    Re: Sticky Puck on Silvia

    Your symptoms are commensurate with underfilling the filter and / or grind too fine in conjunction with underfilling the filter.

    regardz,
    FC

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    Re: Sticky Puck on Silvia

    The Silvia basket has a line around the rim which should be roughly where your tamped coffee level sits. I use two slightly heaped Silvia spoon levels of beans for a double and after tamping (nom 30lb) it ends up approx level with the line. My problem is sometimes the opposite where it gets suck in the basket and both end up in the bang bang. Luckily Ive only got one of those small jobbies and not a tower...plus the basket gets bloody hot!

  5. #5
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    Re: Sticky Puck on Silvia

    Thanks guys.
    I will fill more and grind coarser and give it another go. Incidently, I have rocky on about 9 or 8 and get a slightly wet puck, probably an indication that I grind too fine anyway, :) but when I dose more and grind coarser, I find that the coffee comes through too quickly or it gets choked....what setting do you guys have your rockys? I just cant get the balance right. I am equipped with a 58mm stainless tamp...

  6. #6
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    Re: Sticky Puck on Silvia

    Hi

    Each rocky is slightly different in the grind to number settings , just note the settings that cause both the choking or the gushing shot , those will be on either side of your optimum .
    You also need to make sure that the basket is full enough , with the silvia basket put in enough coffee so that after you tamp it the compressed puck runs along the bottom edge of the indented ridge that runs around the basket , that a good level.

    Note that you will have to adjust slightly your grind for different types of beans and also as temperature varies but this should help you get to a kind of default setting


  7. #7
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    Re: Sticky Puck on Silvia

    Re"...You also need to make sure that the basket is full enough , with the silvia basket put in enough coffee so that after you tamp it the compressed puck runs along the bottom edge of the indented ridge that runs around the basket ...."

    I think you will find you will get a much better espresso if the level of tamped grinds runs over the TOP of the circlip groove (indented ridge).

    Regardz,
    FC.


  8. #8
    Senior Member robusto's Avatar
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    Re: Sticky Puck on Silvia

    Pucks break up when they are too wet, which indicates under-dosing.

    Sounds like your need to load more coffee into the basket (no wet puck) and grind finer too (no gushing out, under time).

    Silvia produces the best coffee when it is somewhat overloaded with finely ground beans.

    Cold water, under-dosing, coarse grinding will produce gushing pale crema.

    Over-dosing, fine grinding, hot water, is more likely to produce a trickle of very dark crema, which is what you should be aiming for --- even if it takes more than 25 seconds.

    Robusto

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    Re: Sticky Puck on Silvia

    I now have no sticky puck phenomena. However upon replacing the original Rancilio baskets with the LM baskets, I have noted that the puck out of the single LM basket tends to break off at the flange leaving a halo of puck inside the basket while the rest of it sits in the bottom of my bang bang..... Do yall reckon I am still underdosing?

  10. #10
    Senior Member robusto's Avatar
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    Re: Sticky Puck on Silvia

    The best advice for single baskets is not to use them. They are much, much more difficult than the doubles and in my opinion not worth the effort. All the procedures associated with a double go out the window when applied to a single basket. You can overload a double with good results, but a single wont even screw on unless it is just right.

    What does your coffee taste and look like? If its ok, Id forget about whether the puck is intact or broken.

    Robusto


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    Re: Sticky Puck on Silvia

    Thanks Robusto. I am doing it in an attempt to limit caffeine intake... The minister of finance has also taken up the role of the minister of health and is applying draconian measures to control the subjects. The single basket gives a slightly lighter shot than the double with about the same amount of crema, I think the pour time is too short, which fits...however if I try to grind finer and use the same amount, it just gets choked. If I grind coarser and load more, the PF, as you say, just wont screw on. I might have to just put up with a lighter shot and clear out the halo after the pull.

  12. #12
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    Re: Sticky Puck on Silvia

    Hi,

    I find I can still make some decent coffee with the single basket by utilising the naked portafilter - it does make a difference :)

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    Re: Sticky Puck on Silvia

    Behmor Brazen - $249 - Free Freight
    Hi Clonetrooper,

    I use a single basket quite a bit with my Silvia. The design of the basket is what contributes to the halo-of-puck in the basket. In fact you should think of it as the ring-of-confidence (sorry Colgate) because in my experience it only forms as a solid halo (as opposed to mush) when youve pulled an optimum shot.

    The singles are more finicky than the double baskets, though. My solution was to get a larger capacity single basket, which is the same design/shape but a bit deeper than the original. Its a much more forgiving basket when it comes to getting the dose and grind right. Ring-of-confidence of course remains.

    Rob



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