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  • aecollins1
    replied
    Re: Silvia flow up and down

    Originally posted by 3B3C2D3E2D262B480 link=1241048427/3#3 date=1241065299

    Caspa - your theory makes sense, execpt that I have the opposite effect.  After the hopper runs out and I refill it, the flow seems to slow down, suggesting a too fine grind...

    Hi Steve,

    My first post might have been a little unclear - my flow also slows down after re-filling the hopper (the grind becomes finer).

    Cheers,

    Anthony

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  • macmaddog
    replied
    Re: Silvia flow up and down

    I use the same setup as you and find that the flow rate varies a little depending on how full the hopper is and bean age although I usually dont have to change more than a click or two (I also use half clicks when necessary) to maintain 25 second doubles.

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  • stevenc
    replied
    Re: Silvia flow up and down



    Bassway - boiler is always primed. I always flush the group head after every shot till there is a steady stream of water.

    Caspa - your theory makes sense, execpt that I have the opposite effect. After the hopper runs out and I refill it, the flow seems to slow down, suggesting a too fine grind...



    Leave a comment:


  • aecollins1
    replied
    Re: Silvia flow up and down

    Originally posted by 61667764777C71120 link=1241048427/0#0 date=1241048427
    It seems to happen when the hopper in the grinder has run out of beans and I fill it up.
    That sounds pretty normal from my experiences. Without changing the settings on my grinder, grinding just enough beans for a double shot (with no extra beans in the hopper) will give a coarser grind than if the hopper is full (the beans are pushed down more, leading to a more consistent grind with no pop-corning). I always make sure my hopper is filled to a minimal level for every shot, to ensure consistency.

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  • bassway
    replied
    Re: Silvia flow up and down

    Mmmm...

    You are priming the boiler, right?

    Is this occurring with one sitting? As beans age, it can change the flow rate.
    I also find that as the machine warms or ambient temp warms I need to adjust the grind coarser. But this is half a step on a LaCimbali Junior. Not much.

    Leave a comment:


  • stevenc
    started a topic Silvia flow up and down

    Silvia flow up and down

    Have been making some great shots with my new Silvia but am running into problems with the flow rate changing for no apparent reason.

    I suspect the grinder of being the culprit.  I am using a Sunbeam 0480.

    I have what I think is a very consistent grind, dose/tamp routine and produce nice looking/tasting 30 ml shots in 20-25 seconds.  Then all of a sudden the flow rate will slow right down.  It will take 10-12 seconds for anything to appear out of the portafiller and then another 30 seconds or longer to get a 30 ml shot.

    It seems to happen when the hopper in the grinder has run out of beans and I fill it up.  Although I havent changed the grind setting, usually a 9-10 on the Sunbeam, the flow rate slows down as described above.  So then I have to bump up the grind up to 12-13.  This will work for a while but then I find I have to creep the grind back down to slow down a too fast flow.

    I am using the original Sylvia double basket and Im sure my dosing/tamping is consistent.

    Could my grinder be producing variable grinds without me actually changing the setting.

    Steven
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