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  • Wet puck after shot

    Good morning all and wandering if someone could possibly assist. Ive upgraded from selling my old Silvia/Rocky combo some years ago to a Bezzera Magica and Quamar Q50 grinder.
    I’m trying to get my head around dialling the grinder in and I’m not sure why but after extraction there is water left on top of the puck. My shots aren’t entirely awful (but certainly not great) and i seem to get my two shots out of my double group head in about 25 seconds. Grind weight is (approx) 25grams.
    Ami do doing something wrong? Or not doing something in the first place.
    Thank you in advance

  • #2
    Welcome to Coffee Snobs Arousell.

    Sounds like your over dosing to me.

    The Magica is very similar to the Domus Galatea (my machine) 25 grams seems like a pretty heavy dose, are you using a double or triple basket?

    I use an EP double basket with my Bezzera, my dose is 18 grams, this gives me approx 8mm from the lip of the basket to the tamped surface of the puck, this gap is necessarily because unlike many other machines the shower screen extends into the basket, updosing beyond the 8mm gap will cause the puck to contact the screen resulting in a mess and wet pucks, mind you a wet puck is no big deal if the coffee is good.

    If you have been over dosing it would pay to give the machine a chemical back flush to clean things up, remove the shower screen first and give it a good wash, then replace it and back flush, as a matter of interest, its a good policy to give it a water back flush after every session.

    25 grams in 25 seconds is in the ball park, I aim for 30 grams in 30 seconds.

    Cant comment on the Quamar, have never used one.

    Let me know if this helps.

    Good luck.

    BTW the Magica is an excellent machine.🙂

    Comment


    • Ronin
      Ronin commented
      Editing a comment
      Can you please explain in more detail how overdoses leave room for water on top of a used puck please? It’s not my experience

  • #3
    Thanks Yelta, i will try altering the dose this morning, but yes totally makes sense.

    Comment


    • Yelta
      Yelta commented
      Editing a comment
      Just edited my post, additional info.

  • #4
    I wouldn’t worry too much about the appearance of the puck, it’s not a very good way to trouble shoot problems. However you definitely need to lower that dose unless you’re using a specific triple shot basket. I’d follow Yelta’s suggestion for sure and see how you go. You can always fine tune the grind setting from that starting point to give the desired result.

    Comment


    • #5
      I’ve just done some fine tuning and am dosing 18g and pulling 2 x 30 ml shots (not sure what that equates to) and tastes not too bad 😊. I stil have water on top of the puck, but the puck itself is nice and firm and falls out in one piece. At least I have a starting point now. Thanks guys, any additional info greatly appreciated.

      Comment


      • Yelta
        Yelta commented
        Editing a comment
        Now just a matter of fine tuning, keep us informed.

      • Yelta
        Yelta commented
        Editing a comment
        "18g and pulling 2 x 30 ml shots"
        Over what time?

    • #6
      25 seconds

      Comment


      • Yelta
        Yelta commented
        Editing a comment
        Perhaps grind a touch finer.

        Its a good idea to keep notes as to changes made along with perceived results.

    • #7
      Originally posted by Arousell View Post
      25 seconds
      That sounds almost spot on. You could possibly grind a bit finer if you feel like the coffee is a touch weak or sour, but if it’s tasting good then don’t change anything.

      Comment


      • #8
        Originally posted by LeroyC View Post
        if it’s tasting good then don’t change anything.
        This is solid advice. My Silvia pucks are, and always have been wet. Some have even been borderline soupy but in the cup, the espressos are absolutely delicious. That is what matters most to me.

        Comment


        • #9
          Just out of curiosity are you using the OEM basket. I have a bezzera duo de and I had the same soupy puck. I switched to a vst and dose the correct amount for the basket and this has given me dry pucks. It was a huge improvement. The headspace comment I think is spot on as the vst is a deeper straight wall basket.

          Comment


          • #10
            Originally posted by west912 View Post
            Just out of curiosity are you using the OEM basket. I have a bezzera duo de and I had the same soupy puck. I switched to a vst and dose the correct amount for the basket and this has given me dry pucks. It was a huge improvement. The headspace comment I think is spot on as the vst is a deeper straight wall basket.
            Hi, and excuse me for jumping in. I have just purchased a Duo DE and am interested in the VST baskets. Can you tell me where you get them from in Australia and which specific basket suits the Duo's BZ group portafiller?

            Comment


            • #11
              A quick Google search revealed a bunch of Aussie suppliers, including a number of highly regarded Site Sponsors...

              Mal.

              Comment

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