Results 1 to 8 of 8

Thread: Is this grind consistency correct for espresso?

  1. #1
    Senior Member
    Join Date
    Aug 2015
    Location
    CQ
    Posts
    139

    Is this grind consistency correct for espresso?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hey guys
    TLDR- My question is, does this grind look fine enough for espresso?

    I just bought a new Breville Dual Boiler to pair with my Breville Dose Control Pro. Fresh beans, hard tamp, 18g dose.

    I have my dose control pro on setting 1/60 (finest), and the top bur changed to 1/10 (finest). However, my 18g shot is still extracting about 150g in 25 seconds. When I dosed up to 21g it extracted about 50g in 25 seconds, however it was pushed into the shower screen, it was burnt and the puck was wedged into the basket extremely hard.

    I am trying to figure out if it is the grinder, or something with the machine (didn't have an issue getting 32g shot from 16g grinds in 30 seconds on my sunbeam with this grinder).

    My question is, does this grind look fine enough for espresso?
    I think I need some shims, but don't want to wait 2 weeks to use my new machine :/
    35736041_1542772569181823_7289710393633538048_n.jpg
    35694814_1542772652515148_5188339065006587904_n.jpg

  2. #2
    Senior Member Barry O'Speedwagon's Avatar
    Join Date
    Dec 2011
    Location
    PRL
    Posts
    2,633
    The grind doesn't look like it should be letting 150g through in 25 seconds. When you say that you use 'fresh beans', exactly what does that mean? What is the roast date?

  3. #3
    Senior Member
    Join Date
    Aug 2015
    Location
    CQ
    Posts
    139
    Quote Originally Posted by Barry O'Speedwagon View Post
    The grind doesn't look like it should be letting 150g through in 25 seconds. When you say that you use 'fresh beans', exactly what does that mean? What is the roast date?
    Hey mate thanks for your help.
    They were roasted 4 days ago, they're a bit too fresh I know. The same occurred with beans about 10 months old (figured I could dial in with them).

    Any advice would be great

  4. #4
    Senior Member artman's Avatar
    Join Date
    Jun 2006
    Posts
    2,418
    Hard to tell from the photo, but the best I can explain an espresso grind is that it feels like gritty flour, ie very fine.

    Sounds like you need to try grinding finer, maybe you need a shim kit installed. Use the razor to keep your dose constant and keep your tamp constant too.

    Cheers

  5. #5
    Senior Member
    Join Date
    Sep 2009
    Posts
    302
    Every time I 'finger' some grinds, a grind that is in the 'zone' when First touched feels like
    Talcum Powder then the more its rubbed becomes gritty like fine carborundum sandpaper.

    You mention differing dosages.
    I've found that each basket requires, or 'has' its own particular Dose Level. So that when finally tamped
    it is clear of the shower screen and remains undisturbed and as you set it up.
    Note this is different to, say randomly picking a dosing weight somehow based on the supposed
    referred to capacity of any given basket. Whether that's from the basket manufacturer or elsewhere.

    Have you checked your final tamp level against the clearance remaining at the Shower Screen?
    Aka a tricky way to say - the 5cent test! Note it is only a one off test. Record or note the results.

    Again this I reckon is a one off test where once a maximum basket height is set up, you then dump the grinds
    onto the scales and weigh. I also note how that 'height' transfers to my tamper shoulder. Bingo.
    That becomes where I tamp down to as a minimum to create the required head height clearance.

    You now should have a fairly close maximum setup recipe for that basket. Of course this is just the base setting,
    AND could vary slightly depending on bean density, roast, grind setting.

    However as you use this recipe day after day it becomes the norm and therefore easy to see, feel and repeat.

    As you mentioned in your post to different dose qty's -an 18g and a 21g dose. Was this the same Basket?
    If so if I had the correct 'recipe' for a basket that is fully dosed at say 21g's (minimal screen clearance that
    either expands into the screen during the shot, Or near to just touches it) And it was a good tasty syrupy shot.
    Then the next day same beans etc But choose to down dose to 18g's, I would by choice fine up that grind setting
    And have Tamped heavier than I did for the previous days 'recipe'.

    Hope that gives you the path your seeking.
    GL
    EA

  6. #6
    Senior Member
    Join Date
    Aug 2015
    Location
    CQ
    Posts
    139
    Quote Originally Posted by EspressoAdventurer View Post
    Every time I 'finger' some grinds, a grind that is in the 'zone' when First touched feels like
    Talcum Powder then the more its rubbed becomes gritty like fine carborundum sandpaper.

    You mention differing dosages.
    I've found that each basket requires, or 'has' its own particular Dose Level. So that when finally tamped
    it is clear of the shower screen and remains undisturbed and as you set it up.
    Note this is different to, say randomly picking a dosing weight somehow based on the supposed
    referred to capacity of any given basket. Whether that's from the basket manufacturer or elsewhere.

    Have you checked your final tamp level against the clearance remaining at the Shower Screen?
    Aka a tricky way to say - the 5cent test! Note it is only a one off test. Record or note the results.

    Again this I reckon is a one off test where once a maximum basket height is set up, you then dump the grinds
    onto the scales and weigh. I also note how that 'height' transfers to my tamper shoulder. Bingo.
    That becomes where I tamp down to as a minimum to create the required head height clearance.

    You now should have a fairly close maximum setup recipe for that basket. Of course this is just the base setting,
    AND could vary slightly depending on bean density, roast, grind setting.

    However as you use this recipe day after day it becomes the norm and therefore easy to see, feel and repeat.

    As you mentioned in your post to different dose qty's -an 18g and a 21g dose. Was this the same Basket?
    If so if I had the correct 'recipe' for a basket that is fully dosed at say 21g's (minimal screen clearance that
    either expands into the screen during the shot, Or near to just touches it) And it was a good tasty syrupy shot.
    Then the next day same beans etc But choose to down dose to 18g's, I would by choice fine up that grind setting
    And have Tamped heavier than I did for the previous days 'recipe'.

    Hope that gives you the path your seeking.
    GL
    EA
    Hey mate thanks for yuor help

    I've found 18g to be the ideal dose so far.

    I've updated with more info here. https://coffeesnobs.com.au/general-c...-attached.html

    Thanks for any advice you can give.

  7. #7
    Senior Member
    Join Date
    Aug 2015
    Location
    CQ
    Posts
    139
    Quote Originally Posted by artman View Post
    Hard to tell from the photo, but the best I can explain an espresso grind is that it feels like gritty flour, ie very fine.

    Sounds like you need to try grinding finer, maybe you need a shim kit installed. Use the razor to keep your dose constant and keep your tamp constant too.

    Cheers
    Installed 3 shims with no change :/
    https://coffeesnobs.com.au/general-c...-attached.html

  8. #8
    Senior Member
    Join Date
    Aug 2015
    Location
    CQ
    Posts
    139
    Behmor Brazen - $249 - Free Freight
    Quote Originally Posted by Barry O'Speedwagon View Post
    The grind doesn't look like it should be letting 150g through in 25 seconds. When you say that you use 'fresh beans', exactly what does that mean? What is the roast date?
    Updated my post here, unsure what to do :/
    https://coffeesnobs.com.au/general-c...-attached.html



Posting Permissions

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