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Thread: Eureka Atom Specialty 65

  1. #1
    Senior Member flashpixx's Avatar
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    Eureka Atom Specialty 65

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Nice man from TNT delivered my new grinder just now. He actually tried to deliver yesterday (3 days ex Sydney to Perth!!!).

    I purchased the grinder from DiPacci in Sydney, dealt with the Director Michael who could not have been more helpful.

    Not sure if I'm breaching forum rules by plugging a non site sponsor?

    I was, and still am today in awe of the service, the follow up and the support Michael has provided. I was a brand new customer this time last week, now I'm a rusted on fan. Wouldn't it be great if all sellers of goods and services of any description understood customer relations!

    Until I get the chance to unpack and set up my new baby, here's a pic of the box

    Eureka Grinder In Box-2.jpg
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  2. #2
    Senior Member matth3wh's Avatar
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    Looking forward to hearing about your Specialita 65 experiences.

    What colour did you get?

  3. #3
    Senior Member flashpixx's Avatar
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    Quote Originally Posted by matth3wh View Post
    What colour did you get?
    Thanks Matthew

    Black, it was black or black when I ordered, so I chose... black

    Cant wait to set it up
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    Quote Originally Posted by flashpixx View Post
    Nice man from TNT delivered my new grinder just now. He actually tried to deliver yesterday (3 days ex Sydney to Perth!!!).

    I purchased the grinder from DiPacci in Sydney, dealt with the Director Michael who could not have been more helpful.

    Not sure if I'm breaching forum rules by plugging a non site sponsor?

    I was, and still am today in awe of the service, the follow up and the support Michael has provided. I was a brand new customer this time last week, now I'm a rusted on fan. Wouldn't it be great if all sellers of goods and services of any description understood customer relations!

    Until I get the chance to unpack and set up my new baby, here's a pic of the box

    Eureka Grinder In Box-2.jpg

    I bought one too from the same vendor. Superb experience too. You’ll love the grinder too..
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  5. #5
    Senior Member flashpixx's Avatar
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    Quote Originally Posted by Gabster View Post
    I bought one too from the same vendor. Superb experience too. You’ll love the grinder too..
    Awesome wondering how to fit my Tiamo cup under the chute. Looks like it’s designed for a pf only. Have to make up a mount for it, looks to be quite simple.

  6. #6
    Senior Member flashpixx's Avatar
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    Setting Up
    Out of the box and on the bench today. Opened it up to have a look at the lovely 65mm flat burrs.
    Zeroed the grind dial (just back from the burrs very lightly touching) and placed a small dot at that point on the grinder body adjacent to the 0 on the dial as a permanent reference point for the graduations on the adjustment dial.
    Set about setting the timer initially to deliver 21g of ground coffee. At the speed this thing delivers grinds the 0.05sec adjustments are quite handy. Set at 9.35 sec for 21g.
    Then adjusted the grind to deliver 34g of espresso from my 21g in 27 - 30 seconds.
    As I was about 1 full graduation too fine initially I needed to go a bit coarser.
    This adjustment has a flow on in terms of grind time, the grinder delivered more weight in grinds at the coarser setting.
    Another gotcha with the grinder is the “bedding in” or whatever it is of the burrs. The first 10 grinds or so are of no use for setting time/weight as the adjustments aren’t linear until this bedding in process is complete.
    This isn’t mentioned in the manual but would be a useful addition.
    You do need at least 750g of coffee to set up the grinder as you may waste 300g or so just bedding it in, or if you are like me and go blindly on adjusting, while the burrs are bedding in, you will go through a lot more.
    lets just say I’ve run out of beans, and I thought I had plenty....

    Other observations

    did I say it was fast.... currently 2.25g / sec
    very very VERY quiet.... shhhh
    I can sit my Tiamo cup on the p/f fork albeit a bit wobbly. A simple job to broaden the prongs a bit to hold the cup steady. To start grinding you need to press a button which would be directly behind the p/f when placed on the fork. There is plenty of room for me to press the button with my finger while the cup is there.
    The screen is bright and easy to read, buttons are intuitive. I haven’t had to resort to RTFM as yet...

    Next step is to fine tune the dose (once I get some more beans) then on to taste testing.

    To Be Continued......
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  7. #7
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    I wouldn't worry about bedding in of burrs in the sense it is part of the process of dialling in a grind. While bedding in it might move slightly to requiring a finer setting. Burrs these days are machined quite well by robot.

    Even my Robur, there may have been a bedding in process but it wasn't an issue day to day, I just used it normally.
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  8. #8
    Senior Member level3ninja's Avatar
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    It sounds like your initial adjustment issues are similar to mine on the 60mm. Mine were due to retention, which you should have less of with the larger burrs. But I went through close to 2kg chasing my tail. Once I figured out the retention and that the level of beans in the hopper changed things as well I had it dialled in in under 200g. Thought I had it all figured out then a couple of kg later the burrs must have seasoned because the grind setting I needed shifted and stayed there.
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  9. #9
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    Quote Originally Posted by level3ninja View Post
    It sounds like your initial adjustment issues are similar to mine on the 60mm. Mine were due to retention, which you should have less of with the larger burrs.
    I never found retention in a Robur ever affected pour times. They are 71mm conical burrs equivalent to much bigger flat burrs.

    Now I can accept contention regarding retention on flavour but I have never noticed a difference.

    Hopper levels affecting pour times could be significant although it would depend on the grinder.

    Retention will always increase with bigger burrs all else being equal.

    Grinders are such simple things in theory but each one will be different.

  10. #10
    Senior Member level3ninja's Avatar
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    Quote Originally Posted by wattgn View Post
    I never found retention in a Robur ever affected pour times. They are 71mm conical burrs equivalent to much bigger flat burrs.

    Now I can accept contention regarding retention on flavour but I have never noticed a difference.

    Hopper levels affecting pour times could be significant although it would depend on the grinder.

    Retention will always increase with bigger burrs all else being equal.

    Grinders are such simple things in theory but each one will be different.
    Do you just see the word grinder and feel the need to talk about both your Robur and all grinders being different? You're talking out your arse again because this is a thread specifically about experiences with the Atom 65, and not only that but you're dead wrong about increased retention in this instance. In this case the standard Atom with 60mm burrs has more retention because the grinding chamber is identical but the 65mm burrs take up more of it and leave less room for retention.
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  11. #11
    Mal Dimal's Avatar
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    Don't hold back 'ninja...

    Mal.
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  12. #12
    Senior Member flashpixx's Avatar
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    Quote Originally Posted by level3ninja View Post
    . In this case the standard Atom with 60mm burrs has more retention because the grinding chamber is identical but the 65mm burrs take up more of it and leave less room for retention.
    Which is why I considered the 65 over the 60. Initial retention assessment is around 2g after emptying the hopper through the burrs. If I leave the manual button on for the full 60 seconds grinds will continue to fall out even after the grind Chamber is empty.

  13. #13
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    Quote Originally Posted by level3ninja View Post
    Do you just see the word grinder and feel the need to talk about both your Robur and all grinders being different? You're talking out your arse again because this is a thread specifically about experiences with the Atom 65, and not only that but you're dead wrong about increased retention in this instance. In this case the standard Atom with 60mm burrs has more retention because the grinding chamber is identical but the 65mm burrs take up more of it and leave less room for retention.
    I think on grind retention and hopper level neither are much important for most grinder and neither is bedding in. I have had grinders other than a Robur...been a member here since 2005.

  14. #14
    Senior Member flashpixx's Avatar
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    Quote Originally Posted by wattgn View Post
    I think on grind retention and hopper level neither are much important for most grinder and neither is bedding in. I have had grinders other than a Robur...been a member here since 2005.
    Hopper level isn’t an issue in this case unless you are relying on the grinder delivering a consistent weight in a fixed time. A hopper with 100g or more of beans delivers more grinds than a hopper with 50g of beans or less over the same timeframe.

    As for bedding in, I’m not sure what was happening as I’ve not experienced it before, but for the same grind setting and time, with the hopper full, for the first 500g of beans at least, there was a stark difference in grind volume over at least 15 grinds.

    Mine has settled down now, but I’ve put at least 1.5kg of beans through it. It now consistently delivers 21g over 8.75 sec

    As someone said, truth is always stranger than fiction!! (Or I made it up )
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    Quote Originally Posted by flashpixx View Post
    Hopper level isn’t an issue in this case unless you are relying on the grinder delivering a consistent weight in a fixed time. A hopper with 100g or more of beans delivers more grinds than a hopper with 50g of beans or less over the same timeframe.

    As for bedding in, I’m not sure what was happening as I’ve not experienced it before, but for the same grind setting and time, with the hopper full, for the first 500g of beans at least, there was a stark difference in grind volume over at least 15 grinds.

    Mine has settled down now, but I’ve put at least 1.5kg of beans through it. It now consistently delivers 21g over 8.75 sec

    As someone said, truth is always stranger than fiction!! (Or I made it up )
    I had the Macap M4D and I think hopper level did have some effect with that but as you say volume in a fixed time is the issue. I keep the level the same most of the time and so the grind time is much the same. You can also dose manually. It is a fast grinder.

    Bedding in is a real thing but there aren't many people who won't be making coffee while it is happening so it is just another variable to start with.

  16. #16
    Senior Member level3ninja's Avatar
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    With the first 500g it was probably the grind chamber filling in all the bits that hold ground coffee long term. It doesn't do that uniformly or all at once. When you open it up and give it it's first thought clean you'll probably find the same thing happens again. The actual bedding in is probably still happening.
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  17. #17
    Senior Member level3ninja's Avatar
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    Quote Originally Posted by wattgn View Post
    I think on grind retention and hopper level neither are much important for most grinder and neither is bedding in. I have had grinders other than a Robur...been a member here since 2005.
    I'm not saying you have no experience. If anyone has a question about a Robur I point them in your direction, as I have done in the past. Cumulative experience is not always relevant to specific pieces of equipment. Generic statements like "...could be significant but would depend on the grinder" and "Grinders are such simple things in theory but each one will be different" only serve to create white noise around the actual issues being discussed. This isn't the discussion of abstract concepts, these are actual pieces of equipment with model numbers and specific characteristics. "I think on grind retention and hopper level neither are much important for most grinder and neither is bedding in" whether or not it applies to most grinders is irrelevant if you don't state whether the model being discussed here fits into the 'most' or 'others' category.
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  18. #18
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    Quote Originally Posted by flashpixx View Post
    Hopper level isn’t an issue in this case unless you are relying on the grinder delivering a consistent weight in a fixed time. A hopper with 100g or more of beans delivers more grinds than a hopper with 50g of beans or less over the same timeframe.

    As for bedding in, I’m not sure what was happening as I’ve not experienced it before, but for the same grind setting and time, with the hopper full, for the first 500g of beans at least, there was a stark difference in grind volume over at least 15 grinds.

    Mine has settled down now, but I’ve put at least 1.5kg of beans through it. It now consistently delivers 21g over 8.75 sec

    As someone said, truth is always stranger than fiction!! (Or I made it up )
    If the grind verus time varies on hopper depth, what depth have you settled on?

    I mean it doesn't matter as long as the result is consistent.

    I do my dosing by volume and level even with the top of the portafilter then tamp. Most people these days weigh each shot.

    It sounds like it is all going well. If I had the money and room I'd have several grinders.

    Grant

  19. #19
    Senior Member level3ninja's Avatar
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    Quote Originally Posted by flashpixx View Post
    Hopper level isn’t an issue in this case unless you are relying on the grinder delivering a consistent weight in a fixed time. A hopper with 100g or more of beans delivers more grinds than a hopper with 50g of beans or less over the same timeframe.
    With my standard Atom I found that the difference in grind output per second correlated to a change in grind size. I.e. the less that came out the finer the grind so that when I topped up to the same dose I'd get a slower pour. This also happened when adjusting grind setting which would then change the output weight for my set time.

  20. #20
    Senior Member flashpixx's Avatar
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    Quote Originally Posted by level3ninja View Post
    With my standard Atom I found that the difference in grind output per second correlated to a change in grind size. I.e. the less that came out the finer the grind so that when I topped up to the same dose I'd get a slower pour. This also happened when adjusting grind setting which would then change the output weight for my set time.
    Interesting you found the grind size changed... It might be too early for me to be making definitive statements about hopper volume and output, so far it would appear as I have reported.
    I haven’t actually used a grind of incorrect volume as yet, ie I’ve not topped up a low dose or removed some from an excess dose.
    This morning I made three doses all came out at 20.9g exactly in 8.75 sec. The hopper started with 100g and I purged about 5g before I made the first dose. Very happy

    Back to the testing

    Tomorrow I plan to actually start making coffee to drink and enjoy. Initial observations are an improvement in mouth feel and a slight bitterness previously noted is no longer present. Again very happy

    Also I want to do a side by side test of 21g in the original basket dosed from the ECM grinder vs 21g in a 20g VST basket dosed from the Atom 65. Just to see how far I’ve come.
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  21. #21
    Senior Member flashpixx's Avatar
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    looks like the grind has settled down to 8.75 sec for 20.9g.
    Morning routine is add 30g to empty hopper, grind for 2 sec (approx 4g) to clear the old grinds still in the grinder (retention), grind my shot. Purge
    Afternoon routine add 30g g etc. etc...
    I dont know if I were to add 100g to the hopper, purge 4g and grind the shot if I would get a markedly different result.
    TBH I probably dont really care, if I were to do that on a consistent basis I would waste alot more beans.
    Very happy with the flavour, mouth feel and extraction times/flow of the shot, that's probably all that matters rather than chasing my tail.
    So at this stage its not a single dose grinder, I'm wasting approx 5g per shot (what's either not used to purge pre the shot or for the shot).

    Hope to do a full review from unboxing, setting up, issues, what I like, what could be better etc...

    and I still havent done the side by side test....
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  22. #22
    Mal Dimal's Avatar
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    Quote Originally Posted by flashpixx View Post
    Very happy with the flavour, mouth feel and extraction times/flow of the shot, that's probably all that matters rather than chasing my tail.
    As per the much quoted saying, "That's what it's all about."

    Mal.
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  23. #23
    Senior Member flashpixx's Avatar
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    Two weeks in and the grinder continues to impress
    a couple of further observations
    - even though the timed dose changes depending on the volume of beans in the hopper, the grind size, and therefore extraction time, appears to remain consistent.
    - grind adjustment is consistent: For different beans with different grind settings, can always return to the correct grind setting
    - the value of VST baskets is demonstrated and evident with this grinder, flavour is intense without bitterness. There is a marked difference in flavour between 21g of my favourite bean from the Atom 65 vs the ECM 54.
    - measured retention (without manually sweeping the chute) is no more than 2g. I will need to stay on top of the cleaning regime, but so far it needs no manual intervention to purge grinds other than a quick (2 sec) purge first thing.

    For my usage the timed dose isn't accurate, I don't load up the hopper with enough beans.

    The most impressive things so far:

    1. flavour in the cup, I wasnt expecting such a difference/improvement
    2. consistency of grind size no matter how full/empty the hopper is = more consistent extractions
    3. speed
    4. quiet

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    Quote Originally Posted by flashpixx View Post
    I can sit my Tiamo cup on the p/f fork albeit a bit wobbly.
    I have a smaller brother of your grinder - Mignon Specialita - and I want to say the p/f fork is the weakest link there.
    That fork simply doesn't match the build quality of the grinder.
    The rest of the grinder is great! So I had to do something.

    In Mignon the fork hold by magnet. So normally it's rocking a bit and trying to pop up a bit as well.
    Since I am not removing it at all I put a small piece of black rubber above it (into the "mounting hole") - it stopped rocking and popping up. My grinder is black so I can't even see that rubber "plug".

    My fork is relatively thin metal with relatively sharp edges.
    So it made me a bit uncomfortable to slide my glossy mirror portafilter on top of this sharp metal.
    My second mode was to put two black heatshrink tubes over each side of the fork and shrink them - heatshrink covers most of both teeth of the fork.

    Now the fork looks better - the color matches the body of the grinder.
    And it feels better too - not wobbly with a "soft touch" of heatshrink.

    "There is nothing you can't fix with some duct tape".
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  25. #25
    Senior Member flashpixx's Avatar
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    Added a review in the grinder review sticky for those that may be interested
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  26. #26
    Senior Member level3ninja's Avatar
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    I'm curious about what you describe to be bedding in. What you describe sounds like the grind chamber filling in nooks and crannies and not the bedding in or seasoning of burrs. Bedding in typically refers to the process where machined parts lose tiny pieces of swarf off the machined edges and come to a uniform shape across the entire machined edge and start giving uniform results. With grinder burrs it typically means the creation of less fines and more uniform particle distribution.

    Also when you say it's good to determine the length of time to get a certain weight output by adding up a number of shorter times, does that not give an inaccurate time? I've never used an Atom 65 but my old Atom 60 and every other timed grinder I've ever used will give you more weight for 10s of continuous grinding than for 2.5s + 2.5s + 2.5s + 2.5s. Each stop and start takes time to get back to full speed again.
    Last edited by level3ninja; 1st November 2019 at 06:14 PM.
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  27. #27
    Senior Member flashpixx's Avatar
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    Quote Originally Posted by level3ninja View Post
    It sounds like your initial adjustment issues are similar to mine on the 60mm. Mine were due to retention, which you should have less of with the larger burrs. But I went through close to 2kg chasing my tail. Once I figured out the retention and that the level of beans in the hopper changed things as well I had it dialled in in under 200g. Thought I had it all figured out then a couple of kg later the burrs must have seasoned because the grind setting I needed shifted and stayed there.
    What you refer to here is what Im talking about.

    Quote Originally Posted by level3ninja View Post
    I'm curious about what you describe to be bedding in. What you describe sounds like the grind chamber filling in nooks and crannies and not the bedding in or seasoning of burrs. Bedding in typically refers to the process where machined parts lose tiny pieces of swarf off the machined edges and come to a uniform shape across the entire machined edge and start giving uniform results. With grinder burrs it typically means the creation of less fines and more uniform particle distribution.

    Also when you say it's good to determine the length of time to get a certain weight output by adding up a number of shorter times, does that not give an inaccurate time? I've never used an Atom 65 but my old Atom 60 and every other timed grinder I've ever used will give you more weight for 10s of continuous grinding than for 2.5s + 2.5s + 2.5s + 2.5s. Each stop and start takes time to get back to full speed again.
    Maybe??? What I put in the review was more a description of how to set up the timed dosing. Perhaps I might edit it for minor refinements.

  28. #28
    Mal Dimal's Avatar
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    Quote Originally Posted by flashpixx View Post
    Added a review in the grinder review sticky for those that may be interested
    Terrific user review flash'...

    Mal.
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  29. #29
    Senior Member flashpixx's Avatar
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    Thanks Mal

  30. #30
    Senior Member flashpixx's Avatar
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    Quote Originally Posted by level3ninja View Post
    Thought I had it all figured out then a couple of kg later the burrs must have seasoned because the grind setting I needed shifted and stayed there.
    This happened today. I’m thinking it may now settle down. The zero point for the burrs moved about 3mm finer (around the circumference of the grind dial).

  31. #31
    Senior Member level3ninja's Avatar
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    Yeah sounds about what mine did

  32. #32
    Senior Member flashpixx's Avatar
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    After putting about 5kg of beans through the Atom 65 since purchasing it pulled it down today and did a full clean.
    Total retention was 3.5g.
    About 0.8g of that was in the small outlet between the burr chamber and the chute. So that 0.8g would be exchanged each time the grinder is used.
    There was about 0.2g stuck in the burrs.
    The the grind chamber retained 2.5g sitting between the bottom burr and grind chamber wall.
    As can be seen the chute has no retained grinds at all.

    11995033-13CF-4AFE-8C4D-A0A5207B5F6B.jpegEE7D791D-E088-43D3-B203-34CD030EBBB9.jpeg

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    Hi Flashpixx. Thanks for sharing your experiences with the atom 65. I also purchased the same grinder a bit over a month ago. It is a fantastic upgrade from my breville smart grinder, both in terms of taste, and enjoyment of use.

    What are your experiences with the composition of the ground coffee? The one issue I have with my grinder is that I get a bit of clumping... clumps are typically around 3mm, and and quite resilient to being broken down (far more so than clumps from my breville). These clumps don’t make any observable impact on a tamped bed of grounds, but they do make it a bit difficult to distribute the grounds pre-tamp. On the other hand, if I’m grinding slightly coarser than espresso, the grounds are wonderfully fluffy. Issue seems to be present for both light and medium roasts. I’m not actually sure whether or not this impacts the final quality of my espresso, but it certainly does annoy me!

  34. #34
    Senior Member flashpixx's Avatar
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    Quote Originally Posted by LiamCollopy View Post
    Hi Flashpixx. Thanks for sharing your experiences with the atom 65. I also purchased the same grinder a bit over a month ago. It is a fantastic upgrade from my breville smart grinder, both in terms of taste, and enjoyment of use.

    What are your experiences with the composition of the ground coffee? The one issue I have with my grinder is that I get a bit of clumping... clumps are typically around 3mm, and and quite resilient to being broken down (far more so than clumps from my breville). These clumps don’t make any observable impact on a tamped bed of grounds, but they do make it a bit difficult to distribute the grounds pre-tamp. On the other hand, if I’m grinding slightly coarser than espresso, the grounds are wonderfully fluffy. Issue seems to be present for both light and medium roasts. I’m not actually sure whether or not this impacts the final quality of my espresso, but it certainly does annoy me!

    Hi LiamCollopy welcome to the forum! Thanks for the question. Yes it certainly is a great grinder.
    As for clumping, I've not noticed any change in grind quality since owning it, other than one bean that I don't use any longer was "oily".
    I'm using a Snobbery Bean currently the Espresso Organic and another local dark roast bean from Bolt Coffee Roastery.
    My workflow may be different to yours - grind into a ss cup invert into the pf, level with my finger, spinny thingo to distribute, and tamp.
    I wouldn't say the grind is clumping...

  35. #35
    Mal Dimal's Avatar
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    Most likely down to the beans...
    Anything a bit more oily than usual has the propensity to result in clumps of more coherence.

    Mal.
    flashpixx likes this.

  36. #36
    Junior Member
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    Some beans do clump a bit more than others, but they all do it to some extent... beans from Industry beans, Monastary, Boston Bean, blends / single origins. The only time I dont see clumps is when my grind is a little too coarse (with shot times around 24s or below).

    Ive uploaded a couple of pics below... is this similar to what you see Flashpixx?

    https://imgur.com/o1s8t3X
    https://imgur.com/K2ttm2M

  37. #37
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    The ACE system on the Atom should force clumps through the fitting and break up clumps and then they fall down a long but steep chute. On the Mignon Specialita I can see small clumps that have been broken up so they distribute well. You really can't get big clumps with these grinders.

  38. #38
    Senior Member
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    I finally got the Atom 60 and it seems most of the same behaviours occur with the 65 too. It is all good though.

    I had it block once after a big change to the grind setting which was an annoyance but I am impressed with how it all comes apart for cleaning. A few screws but nothing that is a problem. I have had the grinder for a few weeks now and have put through about 1.2 kg. I also got the VST 15g basket. I changed the way I do things in order to quantify what I am doing on the new grinder better.

    Pesado dosing cup. Remove PF and dose into it and then use dosing cup to seal around portafilter and shake once or twice then use a distribution tool to level the tamp. I weigh to 15g.

    Yes it is a bit of a dance on timed dosers to get even dosing. I fill the hopper to the top of the cone and I am down to two shots per day. If I have more, I don't sleep well.

    I bought the 60 as it was $400 cheaper than the 65 and I am pleased so far. Quiet and nice controls. Grind is probably the same as the Mignon Specialita I had but the build is somewhat better in the hopper and the PF. I also like the controls better.
    flashpixx likes this.



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