Results 1 to 6 of 6

Thread: Rocky Grinder & Beans

  1. #1
    Senior Member
    Join Date
    Oct 2009
    Location
    Australia
    Posts
    675

    Rocky Grinder & Beans

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi CSers,

    Ive been having dramas with my Rocky in old Miss Lucy since I cleaned it. AngerManagement helped me out during his visit a few weeks ago and we could only get a 60ml in 30sec (double basket) by grinding +1 above zero which was better than my 200ml gushers. Since his visit I have played with the grinder numerous times and found the grinder wasnt grinding totally flat with the bottom burr (used a marker pen) so I moved the burr around a bit to try and get a better grind without much success because the high spot just kept moving. Im trying to keep my dose, tamp etc the same and change the grind so that ultimatly I can pour a ristretto or vary the grind for different beans.

    Just about to give us, and today I ran out of fresh beans so I pulled out some that were roasted on 12/12/09 (so 19 days old). Previously I had been using fresher beans around the 5-10 days mark and with the older beans I ground at the same setting of +1 from zero and got 15 mls from a double basket. Im now getting 60mls from a double at about 4-5 from zero which is better because I can lower the grind to pour a ristretto at last.

    So after pulling out my hair for the past month in frustrution Im left thinking... am I using beans that are too fresh? Or does the grinder sound like it needs looked at?

    AngerM has generously said he would look at my grinder for me again but after todays results Im scratching my head thinking has my fiddling solved the problem, are the beans a problem or am I the problem and I should have a lie down :) Its a 4 hour round trip to see AM and I really dont know if I should waste his or my time if Im getting results like today...

    PS Thanks for listening to my ranting.

  2. #2
    Sleep is overrated Thundergod's Avatar
    Join Date
    Jul 2006
    Location
    Sydney
    Posts
    10,496

    Re: Rocky Grinder & Beans

    Some beans are better at 3 weeks than 1.

    You didnt say what the beans were.
    Same just older or different and older.
    Doesnt matter.
    Know you know.

    There was one particular bean I could never understand why other were giving it high praise.
    I finally left it to 3 weeks plus and could start to taste what they were on about.


  3. #3
    Senior Member
    Join Date
    Oct 2009
    Location
    Australia
    Posts
    675

    Re: Rocky Grinder & Beans

    Different Beans & different ages Thungergod,

    The fresher beans were Pioneer Roastery Sunday Blend, and Costa Rica and it was running at +1. They made a coffee but no room to move by changing the grind. The other beans are Auswana (sp?) bought at the local Noosa markets. Ive also tried Signatures award winning Rare Cargo which had the same problem as the fresh beans.

    I might pickup some super fresh beans today/tomorrow and see what results I get without touching the grinder again. I will split them up into 4 bags and try this at different points as they get old.

    Ive had the grinder in pieces more times than I can imagine over the past month. Its such a basic bit of kit that I cant understand where Im going wrong. Ive been trying different beans so I guess thats where I could be going seriously wrong but being a coffee convert I just wanted to sample different brands and styles to get a feel for that I like.

    The results today just suprised me... after all the frustration it just worked!

  4. #4
    Sleep is overrated Thundergod's Avatar
    Join Date
    Jul 2006
    Location
    Sydney
    Posts
    10,496

    Re: Rocky Grinder & Beans

    Quote Originally Posted by 64494B4D404145280 link=1262134005/2#2 date=1262148539
    Ive been trying different beans so I guess thats where I could be going seriously wrong
    I keep saying "change only one variable at a time".

    Ive roasted at home over 690kgs of the one bean.
    I havent drunk it all myself, but a good proportion of it I have.
    Out of that good proportion it has mostly gone through only two grinders.
    I know that bean and i know my grinders.

    In the last week Ive been using 3 different lots of beans; 2 SOs and 1 blend.

    They each behave slightly differently if I dont adjust the grinder.
    One more so than the other two.

    It can be a challenge.

    Why do you keep pulling the grinder apart?
    Is that possibly introducing another variable?
    If it isnt, what do you achieve by pulling it apart?

    Ive never used a Rocky but they are supposed to be a good grinder.
    AM knows what hes doing; you may have to give him another go at it; after that Id suggest a professional.


  5. #5
    Senior Member
    Join Date
    Oct 2009
    Location
    Australia
    Posts
    675

    Re: Rocky Grinder & Beans

    Quote Originally Posted by 4874697278796E7B73781C0 link=1262134005/3#3 date=1262153671
    I keep saying "change only one variable at a time".
    To be honest I never thought about the beans being a variable until today. Being new I never realised that different beans vary so much. I always though beans as in freshness of the beans, not the different types of beans. Lesson learnt!

    Quote Originally Posted by 4874697278796E7B73781C0 link=1262134005/3#3 date=1262153671
    It can be a challenge.
    Im learning this one really fast too.

    Quote Originally Posted by 4874697278796E7B73781C0 link=1262134005/3#3 date=1262153671
    Why do you keep pulling the grinder apart?
    Is that possibly introducing another variable?
    If it isnt, what do you achieve by pulling it apart?
    I really think it has added that extra variable.

    I pulled it apart initially because I got Ms Lucy second hand and cleaned the grinder. After that the grind went downhill, so I put new burrs in it, that didnt solve the issue, then I did the tape mod to see if that helped, then AM got it working but at +1. We found out that the screw was stopping it getting past +2 so now I can grind right down to the burrs (I was a little worried about doing this). Only had a little time with AM while he was on holiday up this way (great bloke and lovely family). After AM was here we discussed the grinder further and we thought the burrs might be out of alighnment, so following info of the net I use a marker pen to mark the top burrs and then ran the grinder and touched the burrs and the burrs only rub in one place, so I fiddled with the burrs trying to get them to align (moving them, rotating them etc). Probably overkill but I was getting frustated!

    In the end it seems I missed the beans variable all together.

    I guess some beans will run fast, some slower at the same grind.

    Im going to leave the grinder as is, get some grindz to clean it out until it needs a major clean again. Im going to play about with a big 1kg bag of the same beans at different ages and see what the difference is, in pour, grind, taste etc.


    If its still not going well after all that Ill drop it in for AM to play with, and then into get a service if all else fails.

    I really am only just taking the first steps on the long road of coffee arent I :)

  6. #6
    Sleep is overrated Thundergod's Avatar
    Join Date
    Jul 2006
    Location
    Sydney
    Posts
    10,496

    Re: Rocky Grinder & Beans

    Quote Originally Posted by 705D5F595455513C0 link=1262134005/4#4 date=1262158508
    I really am only just taking the first steps on the long road of coffee arent I?
    Yep.



Similar Threads

  1. Replies: 37
    Last Post: 19th December 2014, 10:36 AM
  2. Rocky choking on larger beans
    By jbrewster in forum Grinders
    Replies: 17
    Last Post: 24th July 2012, 07:27 PM
  3. Replies: 4
    Last Post: 7th May 2011, 06:00 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •