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grinder problem: beans blocking? (Rancilio Rocky)

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  • #31
    Re: grinder problem: beans blocking? (Rancilio Roc

    Mick,

    The Espro tampers will get the pressure correct for you but arent a good fit in most baskets (you need a tamp right up to the edge of the basket to get a good seal) and although say a 58 mm tamper is exactly 58 mm the baskets are always larger ..... and that can cause problems....

    A Greg Pullman tamper (around $80 delivered) will fit perfectly - but wont get the pressure right for you - thats where the bathroom scales come in.... and after a while you will be able to get the correct tamp every time!

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    • #32
      Re: grinder problem: beans blocking? (Rancilio Roc

      Thanks JavaB,

      The Pullman tamper looks great.
      I might just give in and get one as soon as I am back in the black.

      I did try the bathroom scales technique.
      I was surprised at how much pressure 13.5 kg is.

      After some tests I realize I had been tamping only to 9kg or 10 kg tops.

      My Sunbeam EM0480 is set on 19 out of 25 (coarse) because anything finer wont flow or give a crema. Still working on that optimum combination. I know I will succeed : )

      Cheers,
      Mick



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      • #33
        Re: grinder problem: beans blocking? (Rancilio Roc

        One trick is to remove the screws that hold your finger guard in place, remove the finger guard, put the screws back in and then put the finger guard back in the slots on top of the screws.

        This will lift up the finger guard (while still doing its job) and leave extra room for the beans to go through so they dont get jammed. Of course before you insert your fingers or anything else in the grinder to force beans down make sure it is unplugged.

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        • #34
          Re: grinder problem: beans blocking? (Rancilio Roc

          Originally posted by Thundergod link=1168811361/15#18 date=1171522048
          click clack lids have a ruber seal around the edge to help make them airtight on their containers.

          If you get one the right size you can push it down on the top of your hopper and force a burst of air through the chute to clear the remaining grounds.

          I took my hopper to Wollies to try the lids out.
          Unfortunately my Macap hopper is between click clack sizes.
          Dredging up an old thread.. but I just discovered today that the lid off my 750cc Vacuvin is a perfect air tight fit for the rocky hopper and can be used to blow out unused grounds. I was a little surprised about how many grinds are left behind in the short chute after grinding stops. I cant believe it took me two years to discover this :-[ At least my Vacuvin is of some use now :P

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          • #35
            Re: grinder problem: beans blocking? (Rancilio Roc

            sorry, got to this thread a bit late in the game...
            our Rocky stalls on big beans... small or oily beans no problem, big beans (particulalry when in a blend with smaller beans) catch several times during one day.
            you can hear the bean "getting caught" and putting the brakes on the burrs.
            dialing up the grind (coarser) while running the motor for a second generally dislodges the bigun.

            L

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            • #36
              Re: grinder problem: beans blocking? (Rancilio Roc

              I plugged in my new rocky last night, and found the same problem - large/oily beans can get blocked, and need a tap to get them flowing again.

              Can the witches hat in the bottom of the hopper be removed easily (ie without cutting plastic)?

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              • #37
                Re: grinder problem: beans blocking? (Rancilio Roc

                shauno,

                Yes, it is technically a finger guard, so removing it exposes a risk of the burrs chewing up something they perhaps shouldnt have access to.

                Having said that, there are 3 screws that hold it in (and are a GREAT place for beans to settle).

                However, I found that leaving it attached was good for reducing the popcorn effect of beans jumping around. This would only be an issue if you load beans as required. If you normally have an amount of beans in the hopper, then removing the finger guard should do the trick for you.

                What I ended up doing when I had mine was leaving the guard in and putting small pieces of dowel in the 3 holes to stop beans getting in there.

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                • #38
                  does the dome nut on the top of the rockys burr set have a left hand thread???

                  thinking of making up a steel arm like the sunbeams have to spin around stop the beans hanging up occasionally in the hopper,


                  cheers/
                  Last edited by koshari; 19 December 2014, 01:23 PM.

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