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Thread: Help pls

  1. #1
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    Help pls

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Just got my machine and grinder out from a months break and trying to make a cup from a roast i did on tuesday night. Something weird is happening because the shot is just pouring straight through the grinds as soon as the pump starts resulting in black watery muck. So i went to fine the grind up but it was already fine so i went finer but nothing. So i thought something stuck in the grinder not letting it adjust, hence i adjusted it back and forth as it was grinding to. Still no go. So i tried going coarse. Still the same watery straight through pour.
    What the hell is happening??? :-/

  2. #2
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    Re: Help pls

    Been trying a few differrent things. I actually roasted another bean that night so i tryed it - same thing. Just came up with a possibility:
    The green beens were maybe just over 3 months old. Theyve been siting on the concrete slab of the garage in the cs bags. I noticed the greenies felt softish. Could this play into whats happening?

  3. #3
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    Re: Help pls

    anyone?
    :(

  4. #4
    Senior Member flynnaus's Avatar
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    Re: Help pls

    Hard to tell from the info you have provided. What beans have you been roasting? Why not buy 250g of a quality bean and give that a try. If that works then its your coffee.
    But I suspect its technique. Have you checked the puck after the shot. It could be distribution or fracturing of the puck. Are you overdosing?* Are you using the single or double basket?

    But no, I wouldnt be leaving the beans on the concrete floor.

  5. #5
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    Re: Help pls

    the beans were ethiopian ghimbi and brazil yellow bourbon,
    im am doing everything as per usual as far as dosing tamping etc..
    the puck is great. firm and once tapped out you can snap it in half.
    thanks flynn

  6. #6
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    Re: Help pls

    What is your grinder? Could be a mis-setting of the burrs perhaps?


  7. #7
    Senior Member artman's Avatar
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    Re: Help pls

    What machine and grinder are you using?

    The Faema machine I bought a while back had not been used for many months and the by pass valve on the pump head was jammed up causing the machine to run at huge pressure. Until I sorted that out it was impossible to get a good shot.

    Not saying this is your issue, but certainly seems strange if you were getting great results from your setup previously that after a short break you can not achieve the same.

    Cheers

  8. #8
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    Re: Help pls

    Quote Originally Posted by 45687C6E6160676E487D4F687D6C090 link=1327751685/5#5 date=1327808386
    What is your grinder? Could be a mis-setting of the burrs perhaps?
    as you can see in my avatar its a K3T
    ty
    Quote Originally Posted by 2330362F232C420 link=1327751685/6#6 date=1327808717
    The Faema machine I bought a while back had not been used for many months and the by pass valve on the pump head was jammed up causing the machine to run at huge pressure.* Until I sorted that out it was impossible to get a good shot.
    actually i replaced the anti-vac valve a few weeks b4 the break and did use it successfully b4 i put it away.

  9. #9
    Senior Member artman's Avatar
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    Re: Help pls

    This was not the anti vac valve that was the issue on mine, it was the pressure adjustment for the brew water.

    It would be good if you could measure your brew pressure to eliminate this as a possibility.

    Cheers

  10. #10
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    Re: Help pls

    Hi Tonee,
    Not an expert on espresso, just curious.

    Because you have speculated as to the condition of the beans, Im wondering how were your roasts ? Did they reach a good sounding first crack ? Did you record your drop temp. after first, or note the roast colour?

    Just trying to eliminate some possibilities.

    JL

  11. #11
    KJM
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    Re: Help pls

    tonee - go with Flynns suggestion: grab some known-good beans and run those through. Youve got 3 unknowns - the beans, the grinder and the machine >:(

    The engineer in me says: fresh beans - will tell you if it is your beans straight away. If it is all peachy, it was the beans. If not - use the new fresh beans and get someone else to grind them. Thatll eliminate the grinder. I would have thought though that if the grind was too coarse youd have noticed that pretty much straight up..

    Itd be disappointing if leaving the machine for a month resulted in the OPV getting stuck closed, but I guess it is possible.

    /Kevin

  12. #12
    CoffeeSnobs Owner Andy's Avatar
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    Re: Help pls

    Quote Originally Posted by 68737279791C0 link=1327751685/2#2 date=1327804697
    anyone?
    :(
    You didnt do yourself many favours Tonee.

    Starting with generic subject like "Help pls" and replies with SMS shorthand "b4" & "ty" at least half the forum will ignore your post.

    We really dont charge any more for using extra keys on the keyboard and a good subject line and english(ish) replies will encourage us to help!

    So after the gentle slap... back to the question at hand.

    Quote Originally Posted by 68737279791C0 link=1327751685/1#1 date=1327753907
    Theyve been siting on the concrete slab of the garage in the cs bags. I noticed the greenies felt softish. Could this play into whats happening?
    Yep. Sitting beans on concrete is a big no no. Coffee is hydroscopic and will attract water and concrete loves to shed water. The mushy feel of the green beans will be the high water content, in fact Im surprised you didnt find mould or a mottly spotty apperance too.

    The cotton bags we use are great for storing beans but you should have a bit of wood or similar between the bag and the concrete. Raised up so they get some air circulation would be best.

    Where to from here? As above I think grab some fresh roasted coffee from somewhere else to prove thats its not your machine or your technique.

    Can you salvage the beans? Maybe, Ive never tried but if you lay them out on raised fly wire in the shed for a few days they should dry out this time of year. I dont really know why you got the results you did but guess that they stewed instead of roasted.

    Maybe you could try roasting a batch to 100C for 5 minutes and then cool them down. Roast them again the following day as you would something like the Monsoon Malabar. The Germans often do this style of "double roasting" so it might be worth a shot to salvage your green stash.


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    watery sump oil

    Appreciate your replies KJM, Juliet Lima, artman and Laughing@Fate.

    Got some bought roasted beans and the machine is warming up now. Lets see what that reveals.

    And thanks Andy for confirmation on the concrete/moisture/greenbean interaction/relationship.
    And i will henceforth air said beans of moisture..

    Speaking of airing.. something I overlooked which could well be the culprit:
    I was at miglore coffee that does roasting and was talking with the guys there back a few months ago and they said when they do a roast they dont bag it immediatley but put it in a non airtight container for around 24hrs then seal it shut in airtight 1way valved bags. So before i put the machine away for a month i did some roasts where i left it air on the bench overnight, then put it in the sealed bags the next day. No worries!
    But...with this roasting episode, i left the coffee on the bench for two and a half days before bagging, thinking it might help speed up the 5-9 days of waiting. It was raining during those days and the coffee was resting near a open window. Not that it got wet by any means, but it was definitely exposed to moist air.
    Could this be causing the problem?

  14. #14
    Senior Member Yelta's Avatar
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    Re: Help pls

    Quote Originally Posted by 7C67666D6D080 link=1327751685/12#12 date=1327994651
    Speaking of airing.. something I overlooked which could well be the culprit:
    I was at miglore coffee that does roasting and was talking with the guys there back a few months ago and they said when they do a roast they dont bag it immediatley but put it in a non airtight container for around 24hrs then seal it shut in airtight 1way valved bags. So before i put the machine away for a month i did some roasts where i left it air on the bench overnight, then put it in the sealed bags the next day. No worries!
    But...with this roasting episode, i left the coffee on the bench for two and a half days before bagging, thinking it might help speed up the 5-9 days of waiting. It was raining during those days and the coffee was resting near a open window. Not that it got wet by any means, but it was definitely exposed to moist air.
    Could this be causing the problem?
    Tonee some of your practices are, well, unique and will have quite a few Coffee Snobs gob smacked.
    I suggest you have a good read through the home roasting and brewing equipment threads, taking particular notice of the tips and suggestions offered.
    At the moment you seem to be all over the place, tighten up your procedures, make notes of exactly what your doing and then if your still having problems ask questions based on the notes you have taken. ;)

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    Re: Help pls

    Thanks Jon.

    Meanwhile I managed to pour a beautiful cuppa from the bought beans.
    Im not sure which one was more the problem:
    bag on concrete slab; or
    airing the beans out in the open for a couple of days

    either way its something that i have now experienced and understand betterer.

    Thanks for helping ;)

  16. #16
    KJM
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    Re: Help pls

    Quote Originally Posted by 160D0C0707620 link=1327751685/14#14 date=1327997482
    airing the beans out in the open for a couple of days
    I would (personally) eliminate this from your process. IMHO this will not shorten the rest period so much as just oxidize the beans needlessly. Plus if the air was wet,...

    Glad youve managed a proper shot!

    /Kevin

  17. #17
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    Re: Help pls

    Behmor Coffee Roaster
    Quote Originally Posted by 7B7A7D300 link=1327751685/15#15 date=1328000936
    Quote Originally Posted by 160D0C0707620 link=1327751685/14#14 date=1327997482
    airing the beans out in the open for a couple of days
    I would (personally) eliminate this from your process.* IMHO this will not shorten the rest period so much as just oxidize the beans needlessly.* Plus if the air was wet,...

    Glad youve managed a proper shot!

    /Kevin
    ;)
    Thanks Kevin.



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