Results 1 to 20 of 20
Like Tree9Likes
  • 1 Post By Andy
  • 1 Post By Melbroaster
  • 1 Post By Melbroaster
  • 2 Post By Dimal
  • 1 Post By toorakwa
  • 1 Post By toorakwa
  • 1 Post By degaulle

Thread: Brew temp measurement

  1. #1
    Senior Member
    Join Date
    Jul 2012
    Posts
    701

    Brew temp measurement

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Can anyone recommend an inexpensive way to rent/buy a device to accurately measure brew water temp in the portafilter? A digital display would be fine and logging the temps to a laptop would be better.

  2. #2
    CoffeeSnobs Owner Andy's Avatar
    Join Date
    Mar 2004
    Location
    Internet
    Posts
    16,752
    Blog Entries
    1
    That's easy to answer.

    HeatSnob!
    CoffeeSnobs - BeanBay - Other Stuff - HeatSnob Temperature Data Logger

    ...with a bead probe...
    CoffeeSnobs - BeanBay - Other Stuff - Spare Thermocouple Bead

    You can set the temperature scale and time to suit, see it live and save/log it too.
    Dimal likes this.

  3. #3
    Senior Member
    Join Date
    Jul 2012
    Posts
    701
    Thanks Andy! Fyi the links were off but I get what you mean. Would probably drill a filter basket and feed the probe in from underneath.

  4. #4
    Member Aido's Avatar
    Join Date
    Apr 2016
    Location
    Brighton QLD & Lennox Head NSW
    Posts
    41
    You can get a digital thermometer that goes into an e61 group where the little nut is on the front. Temperature should be pretty close to portafilter temp +-a couple of degrees. Easy non destructive way to get an accurate temp and still be able to pull shots.

  5. #5
    Senior Member
    Join Date
    Jul 2012
    Posts
    701
    Thanks, but combined cost of the digital thermometer and the engineering involved in getting an e61 group installed on my breville dual boiler would be cost prohibitive....😨
    Aido likes this.

  6. #6
    Member Aido's Avatar
    Join Date
    Apr 2016
    Location
    Brighton QLD & Lennox Head NSW
    Posts
    41
    Quote Originally Posted by Melbroaster View Post
    Thanks, but combined cost of the digital thermometer and the engineering involved in getting an e61 group installed on my breville dual boiler would be cost prohibitive....
    Agreed!!

    What Andy said then!!!

  7. #7
    CoffeeSnobs Owner Andy's Avatar
    Join Date
    Mar 2004
    Location
    Internet
    Posts
    16,752
    Blog Entries
    1
    (Hmmm.. the links work here okay!?!?)

    If you notched the top of the group handle you could still get a basket on flush... and yeah, then come up under the basket.

    Would be interesting to see the results.

  8. #8
    Senior Member
    Join Date
    Jul 2012
    Posts
    701
    Funniest thing. Those links go to different threads when viewed from Tapatalk vs a browser. Viewed in a browser it comes up correct. Not worth spending any time on - probably just a tapatalk bug.
    Andy likes this.

  9. #9
    Mal Dimal's Avatar
    Join Date
    Oct 2004
    Location
    Warwick, QLD
    Posts
    16,760
    Well...

    Given that this procedure isn't required to be done every day, why not just feed a "Bead Thermocouple" on to the top of a coffee puck just before you lock the Group Handle in place. Connect the other end to your Heatsnob or Datalogger DMM and Bob's your uncle. Record the results using the method described by Andy above for future reference...
    No need to modify or butcher a Group Handle, unless you're an Espresso Tech. who like to tinker and DIY...

    Mal.
    kbc and TC like this.

  10. #10
    Senior Member
    Join Date
    Nov 2014
    Posts
    109
    Hey mate, where did you get the strip?

  11. #11
    Senior Member
    Join Date
    Sep 2011
    Location
    Brisbane
    Posts
    170
    +1 would also like a source. Assuming they can be removed without leaving residue.

  12. #12
    Senior Member
    Join Date
    Jul 2012
    Posts
    701
    I bought mine from orphan espresso

  13. #13
    Member
    Join Date
    Sep 2015
    Location
    Perth WA
    Posts
    41
    Quote Originally Posted by Dimal View Post
    why not just feed a "Bead Thermocouple" on to the top of a coffee puck just before you lock the Group Handle in place.
    Do you mean squash the thermocouple cable between the machine's gasket and the basket/portafilter?
    I think the idea is to log the temp and any variation during a brew/pour with the water under pressure.

  14. #14
    TC
    TC is offline
    .
    Join Date
    Oct 2004
    Location
    Melbourne
    Posts
    14,665
    Bead thermocouple or Scace device is the go. Need to be mindful that a temp strip on the outside of the group measures the outside of the group...

  15. #15
    Mal Dimal's Avatar
    Join Date
    Oct 2004
    Location
    Warwick, QLD
    Posts
    16,760
    Quote Originally Posted by toorakwa View Post
    Do you mean squash the thermocouple cable between the machine's gasket and the basket/portafilter?
    I think the idea is to log the temp and any variation during a brew/pour with the water under pressure.
    Indeed I do...

    Been doing it this way for many years. Might have to cinch the Group Handle up a little more, but not much. Even easier with the Silicone Gasket I bought from Andy - More give in it...

    Mal.

  16. #16
    Member
    Join Date
    Sep 2015
    Location
    Perth WA
    Posts
    41
    Quote Originally Posted by Dimal View Post
    Indeed I do...
    I might just give it a try once I receive my thermocouple and logger.
    Dimal likes this.

  17. #17
    Member
    Join Date
    Sep 2015
    Location
    Perth WA
    Posts
    41
    Well, I finally did this today - with very disappointing results.

    Measured my Sunbeam EM7000 brew temp under normal brew conditions (Pressure and flow) and..

    Victor 86B meter, thermocouple on top of coffee puck, 20 second "pour".

    1 - 4 seconds in showed 84 degrees
    4 - 10 seconds gradually went from 84 down to 75 degrees
    10 - 20 seconds from 75 down to 65 degrees - then I stopped and gave up.

    My office of finance (wife) has given me the go ahead to get a new HX machine. Time to go shopping!
    degaulle likes this.

  18. #18
    Mal Dimal's Avatar
    Join Date
    Oct 2004
    Location
    Warwick, QLD
    Posts
    16,760
    Hmmm...

    Sounds like the Thermoblock isn't doing a good job. Starts out low and gradually gets lower and lower...

    Is your SB7000 still under warranty? If so, you should be able to use the data to back your claim for a new t/block or a replacement machine. It is plainly not fit for service as it currently performs...

    Mal.

  19. #19
    Senior Member
    Join Date
    May 2005
    Location
    Perth
    Posts
    1,057
    Quote Originally Posted by toorakwa View Post
    Well, I finally did this today - with very disappointing results.

    Measured my Sunbeam EM7000 brew temp under normal brew conditions (Pressure and flow) and..

    Victor 86B meter, thermocouple on top of coffee puck, 20 second "pour".

    1 - 4 seconds in showed 84 degrees
    4 - 10 seconds gradually went from 84 down to 75 degrees
    10 - 20 seconds from 75 down to 65 degrees - then I stopped and gave up.

    My office of finance (wife) has given me the go ahead to get a new HX machine. Time to go shopping!
    An HX machine would be a great choice. It is tempting to always buy new but I would consider a better machine second hand if money is an issue.

  20. #20
    Member
    Join Date
    Dec 2016
    Location
    Netherlands
    Posts
    98
    Behmor Brazen - $249 - Free Freight
    Quote Originally Posted by toorakwa View Post
    Well, I finally did this today - with very disappointing results.

    Measured my Sunbeam EM7000 brew temp under normal brew conditions (Pressure and flow) and..

    Victor 86B meter, thermocouple on top of coffee puck, 20 second "pour".

    1 - 4 seconds in showed 84 degrees
    4 - 10 seconds gradually went from 84 down to 75 degrees
    10 - 20 seconds from 75 down to 65 degrees - then I stopped and gave up.

    My office of finance (wife) has given me the go ahead to get a new HX machine. Time to go shopping!
    ... and as an accessory get the E61 grouphead thermometer after all !!!
    matth3wh likes this.



Posting Permissions

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